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318 tools live • 100% client-side

Power Locally.
Process Instantly.

Over 318 browser-based tools for PDF, images, text, and code. Process everything locally with zero server uploads.

Flagship Feature

Visual Tool Pipelines

Stop running formatting and conversion tools one by one. Drag, drop, and connect tools on an interactive visual canvas to build custom local workflows that execute instantly on your device.

Interactive Flow Canvas

Connect encoders, string formatters, and hashing algorithms visually.

Dynamic Parameters Inspector

Configure custom parameters (e.g., indent width, search terms) on each node.

100% Client-Side Privacy

Everything runs in your browser's local sandbox memory. Zero data uploaded.

Build Custom Pipeline
Data Migration Pipeline
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CSV to JSON
Parse input CSV table
Find & Replace
Replace empty with null
SHA-256 Hash
Generate raw SHA hex
Execution Time: 4ms 100% Secure & Sandboxed

Browse by Category

Find the right tool for the job

Image Tools

Convert, resize, compress, and edit images: 100% in your browser.

Text Tools

Count words, convert cases, generate slugs, and transform text instantly.

Developer Tools

Format JSON, encode Base64, test regex, and more dev utilities.

PDF Tools

Merge, split, compress, and edit PDF files privately in your browser.

Math & Calculators

Calculators, converters, and math solvers for everyday use.

Security Tools

Generate passwords, QR codes, hashes, and encrypt data securely.

Color Tools

Pick, convert, generate, and test colors for design and development.

Date & Time Tools

Countdown timers, timezone converters, date calculators, and more.

SEO & Marketing

Generate meta tags, robots.txt, sitemaps, and optimize for search engines.

Data & Spreadsheet

Convert between CSV, JSON, and other data formats instantly.

Fun & Utility

Random generators, dice rollers, wheel spinners, and fun tools.

Education & Students

Flashcards, quizzes, grade calculators, citation generators, and study tools.

Finance & Money

Currency converters, loan calculators, budget trackers, and investment tools.

Health & Medical

BMI, calorie, sleep cycle, body fat calculators and health tools.

Video & Audio

Convert, trim, compress video and audio files in your browser.

AI Tools

AI-powered tools running 100% in your browser: private, fast, free.

Utility Tools

Link shortener, invoice generator, signature maker, favicon generator, notepad.

Account & Identity

Generate usernames, validate emails, phones, credit cards, and IBANs.

Game Tools

Error code lookup, DPI calculator, sensitivity converter, crosshair generator, and more.

All Tools

318 tools sorted alphabetically

.gitignore Generator

Generate .gitignore files for 30+ languages, frameworks, and tools.

.htaccess Generator

Generate Apache .htaccess files with redirects, security, and caching rules.

Add Line Numbers

Add customizable prefix line numbers to text blocks with padding and step options.

Add Page Numbers

Add customized page numbers to your PDF document automatically.

Add Watermark

Stamp text or image watermarks onto all or selected PDF pages.

Add/Subtract Date Calculator

Add or subtract days, weeks, months, or years to/from any date.

AES Encrypt/Decrypt

Encrypt and decrypt text securely using AES-GCM 256-bit client-side.

Age Calculator

Calculate exact age with zodiac sign and next birthday countdown.

AI Translator

Translate text between 9 languages using AI: EN, VI, ZH, JA, KO, FR, DE, ES, RU. Multilingual models, only 2 models for all languages.

API Key Generator

Create standard-compliant API keys (Stripe, GitHub, OpenAI format) with prefixes.

API Request Tester

Test API endpoints client-side with headers, params, and body payload configurations.

Area & Perimeter Calculator

Compute the area and perimeter of flat shapes including rectangles, circles, triangles, and polygons.

Audio Converter

Convert audio files to WAV or OGG: browser-based.

Audio Trimmer

Trim and cut audio files: browser-based.

Audio Volume Booster

Boost or reduce audio volume: preview and download.

Average Calculator (Mean, Median, Mode)

Calculate the mean, median, mode, range, min, max, and count of a data set.

AVIF Converter

Convert JPG, PNG, and WebP to AVIF, and vice versa.

Background Remover

Remove image backgrounds instantly with AI. 100% in-browser.

Barcode Generator

Generate barcodes — CODE128, EAN-13, UPC, and more.

Base32 Encoder/Decoder

Encode and decode Base32: used in TOTP, IPFS, and other systems.

Base64 Encoder/Decoder

Encode and decode Base64 for text and files.

Bill Splitter & Tip Calculator

Split bills and calculate tips easily with custom currency and formats.

Binary to Decimal

Convert binary (base-2) numbers to decimal (base-10) instantly.

Binary to Hex

Convert binary (base-2) numbers to hexadecimal (base-16) format.

Blog Title Generator

Generate catchy, SEO-friendly headlines for listicles, guides, and questions.

BMI Calculator

Calculate Body Mass Index with ideal weight and health insights.

Body Fat Calculator

Calculate body fat percentage: Navy method.

Border Radius Generator

Create CSS border-radius with live preview and layers.

Box Shadow Generator

Create CSS box-shadow with live preview and copy.

Brand Color Palette Extractor

Browse popular brand schemes, or paste code to extract all dominant hex colors.

Break Even Calculator

Calculate your break-even point for business.

Budget Tracker

Track income and expenses with categories.

Business Days Calculator

Calculate working days between dates or add/subtract business days.

Calendar Generator

Generate and print calendar layouts with custom event markers.

Calorie Calculator TDEE

Calculate your daily calorie needs: BMR and TDEE.

Canonical URL Checker

Inspect HTML sources to locate and audit technical canonical links compliance.

Case Converter

Convert text between uppercase, lowercase, title case, and more.

Checksum Verifier

Verify file and text integrity against MD5, SHA-1, SHA-256, and SHA-512 values.

Citation Generator

Generate APA, MLA, Chicago citations instantly.

CMYK Converter

Convert CMYK print colors to digital formats (HEX, RGB, HSL) with live previews.

Coin Flipper

Flip a coin with animation: track history and stats.

Color Blindness Simulator

Simulate color vision deficiencies on uploaded images or custom color swatches.

Color Format Converter

Universal color converter: enter any format (HEX, RGB, HSL, CMYK) and get all formats.

Color Mixer

Mix two colors with adjustable ratio — output HEX, RGB, HSL.

Color Name Finder

Pick or enter any color value to instantly retrieve its closest named color.

Color Palette Generator

Generate harmonious color palettes from any base color.

Color Picker

Pick and convert colors between HEX, RGB, and HSL with live preview.

Color Shades

Generate 10 darker shades of any color — perfect for palettes.

Color System Generator

Generate a full color system from one color.

Color Tints

Generate 10 lighter tints of any color — perfect for palettes.

Common Ports & Services Reference

Educational guide for network ports, vulnerability risks, and firewall advice.

Compound Interest Calculator

Calculate compound interest with charts and goals.

Contrast Checker WCAG

Check WCAG color contrast: AA and AAA compliance.

Countdown Timer

Countdown to any date with presets and alerts.

Credit Card Validator

Validate credit card numbers: Luhn algorithm, card type detection, formatting.

Cron Expression Generator

Visually build cron schedules and explain expressions in plain language.

Crosshair Generator

Create and customize crosshairs for Valorant, CS2, and Overwatch 2.

CSP Evaluator

Analyze Content Security Policy headers for security issues and best practices.

CSS Flexbox Generator

Build Flexbox layouts visually: all properties.

CSS Formatter

Format, beautify, and minify CSS with custom indentation.

CSS Gradient Generator

Create CSS gradients with live preview and presets.

CSS Grid Generator

Build CSS Grid layouts visually: generate code instantly.

CSS Minifier

Minify CSS code: remove comments, whitespace, shorten values.

CSS Specificity Calculator

Calculate specificity score (ID, class, element) and override comparisons.

CSS Units Converter

Convert between CSS units: px, em, rem, %, vh, vw, pt and more.

CSV / Text Column Extractor

Extract specific column cells from CSV, TSV, or logs with custom delimiters and full quote parsing.

CSV Formatter

Format, validate, and preview CSV data with table view.

CSV to JSON

Convert CSV to JSON with auto-delimiter detection.

CSV to XML

Convert CSV data to XML format with custom row tags and delimiters.

cURL Builder

Visually construct single-line or multi-line cURL queries with headers and body parameters.

cURL Converter

Parse raw cURL requests and generate Fetch, Axios, Python, Go, and Rust snippets.

Currency Converter

Convert between major currencies with live rates.

Date Difference Calculator

Calculate the exact difference between two dates.

Date Format Converter

Format dates into national standard presets or define custom formats.

Decimal to Binary

Convert decimal numbers to binary with configurable bit width (8, 16, 32-bit).

Decimal to Hex

Convert decimal numbers to hexadecimal (base-16) format.

Decision Maker Spinner

Spin the wheel to decide: add custom options.

Dice Roller

Roll virtual dice: D4 to D100 with stats and history.

DNS Lookup

Query DNS records for any domain: A, AAAA, MX, NS, TXT, CNAME.

Dockerfile Generator

Generate optimized Dockerfiles for Node.js, Python, Go, PHP, and Java.

DPI Calculator

Calculate eDPI, cm/360°, and sensitivity for FPS games.

Duotone Generator

Apply a custom duotone filter mapping highlights and shadows to two specific colors.

Email Validator

Validate email addresses: format check, disposable detection, bulk support.

Emoji Picker & Search

Browse and search emojis: click to copy.

ENV File Parser & Converter

Parse .env files, hide/mask secret values, and export to JSON, Shell, or YAML.

Equation Solver

Solve linear, quadratic, and cubic equations, or 2x2 and 3x3 linear equation systems with step-by-step math.

Error Code Lookup

Look up error codes for Riot, Steam, PlayStation, Xbox, Epic Games, and Windows.

EXIF Metadata Manager

View and completely remove metadata (EXIF/GPS) from your images for privacy.

Face Detection

Detect and blur faces in images using AI. Privacy protection made easy.

Fancy Text Generator

Generate fancy Unicode text: multiple styles.

FAQ Schema Generator

Generate copyable JSON-LD and HTML codes for FAQ structured snippets.

Favicon Generator

Generate favicons from text or images: multiple sizes and formats.

Find & Replace

Find and replace text with regex support, case sensitivity, and whole word matching.

Flashcard Maker

Create and study flashcards: saved locally.

Fraction Calculator

Calculate fractions with step-by-step solutions.

Fraction to Decimal Converter

Convert fractions to decimal values (with repeating periods) and vice versa.

Game Timer

Pomodoro timer, session tracker, and stopwatch for gamers.

GPA Calculator

Calculate GPA from course grades.

Grade Calculator

Calculate weighted average grades.

Gradient Palette Generator

Generate aesthetic gradient combinations (complementary, analogous, etc.) from a single color.

Grammar Checker

Check and fix grammar mistakes using AI. Supports English text.

GraphQL Formatter & Tester

Format GraphQL query strings, configure variables, and run API requests.

Hash File

Generate SHA-1, SHA-256, SHA-384, SHA-512 hash of any file.

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text.

HEIC Converter

Convert Apple HEIC images to JPG or PNG format offline.

Hex to Binary

Convert hexadecimal (base-16) numbers to binary with configurable bit width.

Hex to Decimal

Convert hexadecimal (base-16) numbers to decimal format.

HEX to RGB Converter

Convert HEX color codes to RGB with color preview and HSL output.

HH:MM:SS to Seconds

Convert time formats (HH:MM:SS, 2h 30m 15s) to total seconds.

HMAC Hash Generator

Compute cryptographic HMAC hashes client-side with SHA-1, SHA-256, and SHA-512.

HMAC Signature Validator

Verify message integrity and authenticity against an expected HMAC signature.

Hreflang Generator

Generate multilingual alternate links for international SEO tags.

HSL to HEX Converter

Convert HSL and HSLA color values to 6-character and 8-character HEX codes.

HTML / CSS / JS Sandbox

Playground to write HTML, CSS, and JS with real-time sandboxed preview.

HTML Entity Encoder/Decoder

Encode text to HTML entities and decode HTML entities back to text.

HTML Formatter

Format and beautify HTML with custom indentation.

HTML to Markdown

Convert HTML to clean Markdown: all elements supported.

HTML to Text

Strip HTML tags and convert to plain text: preserves structure and list items.

HTTP Status Codes

Searchable reference of HTTP status codes with descriptions.

IBAN Validator

Validate IBAN numbers: checksum, country detection, bank info, formatting.

Image Background Color Changer

Change or replace the background color of transparent or solid background images.

Image Blur & Pixelate

Apply fast blur effects or pixelate images to create retro pixel art.

Image Captioning

Generate natural language descriptions for any image using AI.

Image Color Extractor

Extract the dominant color palette from any image using Median Cut quantization.

Image Compressor

Compress images with quality control and before/after preview.

Image Cropper

Crop images with aspect ratio presets and rotation.

Image Enlarger / Upscaler

Enlarge and upscale images without losing quality using Lanczos interpolation.

Image Resizer

Resize images by pixels, percentage, or social media presets.

Image Rotator & Flipper

Rotate and flip images: 90, 180, 270 or custom.

Image to Base64

Convert images to Base64: data URI or raw.

Image to PDF

Convert PNG, JPG, WebP, SVG, and other images into a single PDF.

Image Watermark Adder

Add text watermarks to images: position, opacity, rotation.

Investment Calculator

Project investment growth with compound returns.

Invoice Generator

Create professional invoices with line items, tax, and print support.

IP Address Lookup

Look up your public IP address with geolocation, ISP, and timezone info.

ISO Date Converter

Convert date strings to ISO-8601 standard, Unix timestamps, and Julian dates.

JPG to PNG

Convert JPG images to lossless PNG format.

JPG to WebP

Convert JPG to WebP for smaller, higher-quality files.

JS Formatter

Format and beautify JavaScript with proper indentation.

JSON Formatter

Format, validate, and minify JSON with syntax highlighting.

JSON Path Tester

Query and extract data from JSON objects with live JSONPath expressions.

JSON Schema Validator

Validate JSON instance data against JSON Schema Draft-07 rules offline.

JSON to CSV

Convert JSON arrays to CSV with nested object flattening.

JSON to TOML

Convert JSON data to TOML configuration format.

JSON to TSV

Convert JSON arrays to TSV (tab-separated values) format.

JSON to TypeScript

Convert JSON objects to TypeScript interfaces or types instantly.

JSON to XML

Convert JSON data to XML format with custom root element and indentation.

JSON to YAML

Convert JSON data to YAML format with customizable indentation.

JWT Decoder

Decode and inspect JWT tokens: header, payload, and signature.

JWT Encoder

Encode JWT tokens with custom header, payload, and secret key.

JWT Verifier

Decode and inspect JWT headers, payloads, and verify HMAC signatures.

Keyword Density Checker

Analyze keyword frequency and check for stuffing indicators in your content.

Keyword Extractor

Extract the most relevant keywords and phrases from text using AI embeddings.

Language Detector

Detect the language of any text instantly using Unicode analysis. No model download.

Line Counter

Count lines, blank lines, and non-blank lines.

Link Shortener

Shorten URLs and generate QR codes: client-side hash-based shortening.

Loan Calculator

Calculate loan payments with amortization schedule.

Lorem Ipsum Generator

Generate placeholder text by paragraphs, sentences, or words.

Markdown to HTML

Convert Markdown to HTML with live preview.

Material Color Generator

Generate standard Material Design color weights (50-900) from any single base color.

Matrix Calculator

Perform matrix addition, subtraction, multiplication, determinants, transpose, and inverses up to 4x4.

Meeting Time Planner

Find optimal overlap hours for virtual meetings across timezones.

Meme Generator

Create funny memes with custom templates or your own images.

Meta Tag Generator

Generate SEO meta tags with Open Graph and SERP preview.

Meta Title Length Checker

Optimize title and description pixel and character lengths for search results.

MIME Type Lookup

Look up MIME types by file extension or vice versa: 50+ types.

Morse Code Converter

Convert text to Morse code and Morse code back to text with reference table.

Named Entity Recognition

Detect and highlight names, places, and organizations in text using AI.

NanoID Generator

Create secure unique string IDs with custom alphabets and lengths.

Net Worth Calculator

Calculate your net worth: assets minus liabilities.

Nginx Config Generator

Generate Nginx server configuration files with proxy, SSL, and compression.

Number Base Converter

Convert numbers between any bases (2-36): binary, octal, decimal, hex, and more.

Number to Words

Convert numbers to English words: supports negatives, decimals, up to trillions.

Object Detection

Detect and label objects in images using AI. Annotated results.

OCR: Image to Text

Extract text from images using AI-powered OCR. Supports 15 languages.

Octal Converter

Convert between octal (base-8) and decimal: includes Unix permission reference.

OKLCH Color Converter

Explore and convert the modern OKLCH color space to standard HEX, RGB, and HSL formats.

Online Notepad

Quick notes with auto-save, export, and multiple note support.

Open Graph Preview

Preview how your website page looks when shared on social media sites.

OpenAPI & Swagger Viewer

View and interact with OpenAPI specification files in JSON or YAML offline.

OTP Generator

Generate TOTP 2FA codes with countdown timer and auto-refresh.

Palette From Image

Upload an image to extract a dominant, harmonious color palette and export it.

Paraphrase Generator

Rewrite text in different ways using AI. Generate multiple paraphrased versions.

Passport Photo Maker

Create passport, visa, and ID photos with standard size presets and print sheet grids.

Password Breach Checker

Check if a password has been exposed in data breaches: privacy-first k-anonymity.

Password Generator

Generate secure passwords with custom length and character sets.

Password Strength Checker

Test password strength with entropy and crack time estimates.

PDF Compressor

Reduce PDF file size: no uploads, instant compression.

PDF Form Filler

Fill out interactive PDF forms (AcroForms) entirely in the browser.

PDF Merger

Combine multiple PDFs into one: private and instant.

PDF Metadata Viewer

View and edit PDF metadata, including Title, Author, and Keywords.

PDF OCR

Extract text from scanned PDF documents using Tesseract OCR.

PDF Page Delete

Remove one or multiple pages from your PDF file.

PDF Page Reorder

Rearrange the pages of a PDF document visually by drag and drop.

PDF Password Protect

Encrypt and secure your PDF with open and owner passwords.

PDF Rotator

Rotate PDF pages: 90°, 180°, 270° clockwise.

PDF Signature Tool

Sign PDF documents with drawn, typed, or uploaded signatures.

PDF Splitter

Split PDFs by page range or extract specific pages.

PDF to Images

Extract and convert PDF pages into PNG or JPG images.

PDF to Text

Extract text from any PDF: search, copy, or download.

PDF Unlock

Remove passwords and restrictions from your secured PDF files.

Percentage Calculator

Calculate percentages, tips, discounts, and tax instantly.

Period & Ovulation Tracker

Track your cycle and predict fertile/ovulation windows offline with absolute privacy.

PGP Encrypt/Decrypt

Encrypt/decrypt text and manage keys using OpenPGP completely in browser.

Phone Validator

Validate phone numbers: country detection, format E.164, bulk support.

Photo Filters

Apply photo filters: Vintage, Cool, Warm, Dramatic and more.

Placeholder Image Generator

Generate custom placeholder images instantly.

PNG to JPG

Convert PNG images to JPG with quality control and batch support.

PNG to WebP

Convert PNG to WebP for dramatically smaller file sizes.

Pomodoro Timer

Work/break interval focus timer following the Pomodoro technique.

Prefix/Suffix Lines

Prepend and append custom text to each line, with options to skip blank lines.

Pregnancy Due Date Calculator

Calculate your due date and track milestones.

Probability Calculator

Calculate permutations/combinations (nPr, nCr), single/multi-event probabilities, and binomial distribution.

Profanity Filter & Bad Words Detector

Detect, censor, or highlight offensive and bad words in English and Vietnamese texts.

Proportion Calculator

Check if two ratios are proportional, and solve direct or inverse proportions.

Public/Private Key Matcher

Verify if a public key matches a private key for RSA, DSA, or ECDSA.

Punycode Converter

Convert between Unicode domain names and Punycode (IDN encoding).

QR Code Generator

Generate QR codes from any text or URL: download PNG or SVG.

QR Payload Decoder

Scan and decode QR codes from files, camera, or clipboard with Wi-Fi parsing.

Question Answering

Ask questions about a passage and get AI-powered answers instantly.

Quiz Maker

Create and take quizzes: free and private.

Quoted-Printable Encoder/Decoder

Encode and decode Quoted-Printable format used in email encoding.

Random Name Picker

Pick random names with animation from a list.

Random Number Generator

Generate secure random numbers with batch mode and formatting.

Random Token Generator

Generate cryptographically secure random tokens (Hex, Base64, Base32, Custom).

Ratio Calculator

Solve proportions (A:B = C:D), scale ratios, and simplify multi-value ratios.

Readability Score

Calculate readability scores: 6 formulas with grade levels.

Reading Time Calculator

Estimate reading and speaking time with adjustable WPM.

Regex Explainer

Understand regular expressions: tokenize and explain each part.

Regex Find & Replace Builder

Build find and replace regular expressions visually using pre-defined patterns and instant testing.

Regex Tester

Test regular expressions with live highlighting and match details.

Remove Duplicate Lines

Remove duplicate lines from text: case-sensitive or insensitive.

RGB to HEX Converter

Convert RGB and RGBA color models to Hexadecimal formats with opacity support.

RGB to HSL Converter

Convert between RGB and HSL color formats with interactive sliders.

Robots.txt Generator

Generate robots.txt with rules and sitemap.

Roman Numeral Converter

Convert between Roman numerals (I, V, X, L, C, D, M) and decimal numbers (1-3999).

ROT13 Encoder/Decoder

Encode and decode text with ROT13 and custom ROT-N cipher shifts.

RSA Key Generator

Generate cryptographically secure public/private RSA key pairs client-side.

Schema Markup Generator

Generate standard JSON-LD Schema structured markups for rich search snippets.

Scientific Calculator

Perform advanced arithmetic, trigonometric, logarithmic, and factorial calculations.

Scientific Notation Converter

Convert between decimal numbers and scientific notation with both formats.

Seconds to HH:MM:SS

Convert seconds to human-readable time format with days, hours, minutes breakdown.

Secure Notes Encryptor

Write, encrypt, and download password-protected notes locally in your browser.

Security Headers Evaluator

Parse and audit raw HTTP response headers for security configuration best practices.

Sensitivity Converter

Convert mouse sensitivity between 12+ FPS games.

Sentiment Analysis

Analyze the emotional tone of text: positive, negative, or neutral.

SERP Preview Tool

Simulate and preview how your webpage looks in Google search results.

Signature Generator

Draw and download digital signatures as PNG or SVG.

Sitemap Generator

Generate XML sitemaps with priority and frequency.

Sleep Cycle Calculator

Calculate optimal sleep and wake times.

Slug Generator

Generate clean URL slugs from any text with bulk mode.

Social Media Resizer

Crop and resize images to standard formats for Facebook, Instagram, YouTube, and TikTok.

Speech to Text

Transcribe audio files or microphone recordings to text using AI: Whisper model.

SQL Formatter

Format SQL queries with uppercase keywords and proper indentation.

SSH Key Generator

Generate standard SSH keys (ED25519, RSA) with passphrase option entirely client-side.

SSL Checker

Check SSL certificate details for any domain: issuer, expiry, chain.

Standard Deviation Calculator

Calculate population and sample standard deviation, variance, and mean with step-by-step breakdown.

Stopwatch

Measure elapsed time with millisecond precision and lap times logging.

Study Planner

Plan your study schedule around exams.

SVG Optimizer

Optimize SVG: remove comments, whitespace, shorten colors.

Tailwind Color Palette Generator

Generate custom Tailwind CSS 50-950 color shades from any base color.

Tax Calculator

Calculate US federal income tax with brackets.

Text Cleaner & Unicode Normalizer

Normalize Unicode representations (NFC/NFD), strip HTML, standardise quotes, and remove invisible characters.

Text Diff

Compare two texts side by side: line-by-line diff with colors.

Text Joiner

Merge text items using custom separators, quotes formatting, and space trimming.

Text Repeater

Repeat text N times with custom separator options.

Text Reverser

Reverse text, words, or character order instantly.

Text Sorter

Sort lines alphabetically, by length, or randomly.

Text Splitter

Split large texts into segments by characters, words, or custom delimiters, with ZIP downloading.

Text Statistics

Analyze text with detailed statistics: words, characters, sentences, reading time.

Text Summarizer

Summarize long articles and texts using AI. Adjustable length.

Text to ASCII Art

Convert text to ASCII art using block-style letters. Fun text transformer.

Text to Binary / Binary to Text

Convert text to binary code and binary code back to text. Supports 7-bit and 8-bit.

Text to Hashtags

Generate hashtags from text: keywords extraction.

Text to Hex / Hex to Text

Convert text to hexadecimal and back. Useful for debugging and encoding.

Text to Speech

Convert text to speech with voice selection, speed, pitch, and volume control: instant, no download.

Text Truncate

Truncate text to a max length with custom ellipsis and word boundary options.

Text Wrap

Wrap text at a specified character limit with word boundary support.

Time Ago Calculator

Find relative verbal descriptions and unit offsets from any point in time.

Time Duration Calculator

Calculate the duration between two times of day in hours, minutes, and seconds.

Timezone Converter

Convert time between timezones with world clock.

TOML to JSON

Convert TOML configuration files to JSON format.

Triangle Calculator

Solve triangles by sides or angles, compute area/perimeter, heights, inradius/circumradius, and view drawing.

TSV to JSON

Convert TSV (tab-separated values) to JSON array with auto-header detection.

Twitter Card Preview

Simulate how shared webpage links look on Twitter/X feeds.

TypeScript to JS Converter

Convert TypeScript to JavaScript: strip type annotations.

Typing Speed Test

Test and improve your typing speed (WPM) and accuracy in English or Vietnamese.

ULID Generator & Decoder

Generate sortable ULIDs and decode creation timestamps offline.

Unicode Encoder/Decoder

Convert text to Unicode escape sequences (\uXXXX) and back.

Unit Converter

Convert units across 5 categories: length, weight, temperature, speed, data.

Unix Timestamp Converter

Convert Unix timestamps to dates and back.

Upside Down Text

Flip text upside down using Unicode characters. Fun text transformer.

URL Encoder/Decoder

Encode and decode URLs and URI components.

URL Parser

Parse URL into components: protocol, host, path, query params, fragment.

User Agent Parser

Parse browser User-Agent string: OS, browser, device, engine info.

Username Generator

Generate unique usernames: gamer, professional, funny, or random styles.

UTM Campaign Builder

Quickly build campaign URLs with UTM tracking parameters.

UUID Generator

Generate UUID v4 values: batch mode, multiple formats.

UUID Validator & Extractor

Validate UUID formats and decode version metadata single or in bulk.

Video Speed Changer

Speed up or slow down any video: 0.25x to 4x.

Video to MP3

Extract audio from any video file: private.

Vietnamese Accent Remover

Convert accented Vietnamese text into clean non-accented text or URL slugs offline.

Vietnamese Lorem & Fake Data Generator

Generate Vietnamese placeholder text and realistic mock developer data (names, phones, bank details).

Volume & Surface Area Calculator

Calculate the volume and surface area of solids like spheres, cylinders, cones, and prisms.

Water Intake Calculator

Calculate your daily water intake needs.

WebP to PNG

Convert WebP images to universally compatible PNG format.

Week Number Calculator

Find the ISO-8601 and US calendar week number for any date.

Wheel Spinner

Spin the wheel to pick a random winner.

Whitespace Remover

Remove extra whitespace, blank lines, and normalize spaces in text.

Word Counter

Count words, characters, sentences, and paragraphs instantly.

Workflow Builder

Chain multiple tools into a pipeline: format, convert, encode, and hash in one flow.

World Clock

Display current time in multiple global cities simultaneously.

XML Formatter

Format, beautify, and minify XML with validation.

XML to CSV

Convert XML data to CSV format with download support.

XML to JSON

Convert XML documents to JSON format with automatic parsing.

YAML Formatter

Format, validate, and beautify YAML with error details.

YAML to JSON

Convert YAML to JSON format using js-yaml library.

YouTube Tags Generator

Compile and build Youtube tags and keywords lists under 500 characters.

Built Different

Mathematical Browser Privacy

Your files and keys never touch our servers. ToolBundle compiles tools into WebAssembly and processes files locally using standard browser engine APIs.

✓ No Servers
✓ Local Web Crypto
✓ Sandboxed

Instant Execution

No upload waiting, no queuing. Results generate instantly because all processing utilizes your local device hardware.

Runs at native speed

Unlimited & Free

No subscription popups, no account creation barriers. PWA offline compatibility guarantees access anywhere.

100% Client-Side