Free Tools

A browser-based display toolkit that turns any screen into a LED sign, light effect, sound visualizer, clock, QR code, or camera filter. Supports dozens of themes and modes — no app, no account, just a URL.

A community-driven, open source collection of quick-start guides ("The TL;DR of everything"). Provides 124+ free guides for tools and technologies like Docker, without requiring any account or login.

A free online collage and image editing tool. No login required, completely free to use. Built entirely on the front end, ensuring absolute privacy and security for your images. Download high-resolution results with no watermarks. A clean and professional tool for creating beautiful visual works.

Privacy-focused AI chat powered by Claude, Llama, Mistral, and GPT-4o mini. All chats are anonymous and never used for AI training.

The simplest way to host an AMA session. Create a space, share the link, and start answering. No registration required.

A temporary clipboard tool that lets you sync text and content across devices in seconds. No signup required, end-to-end encrypted, and content auto self-destructs. Simply open a named channel and paste from any device.

A URL-based time tool that lets you create countdowns, countups, clocks, and recurring cycles — all embedded in the link itself. No signup required, just craft your URL and share it. Supports multiple themes and time units.

A curated directory of tools and services that work without creating an account or logging in. Browse, search, and filter tools by category, privacy, pricing, and more — all without registration.

Open-source FIRE retirement portfolio simulator that runs your plan against 150+ years of historical US market data. Configure portfolio size, annual spending, asset allocation, withdrawal strategies, Social Security income, and more to see what percentage of historical scenarios your retirement survives.

An open-source AI chat interface by Hugging Face that lets you talk to 100+ state-of-the-art language models — including Llama, DeepSeek, Qwen, and Mistral — directly in your browser. No account needed for basic use. Switch between models freely, with optional login only for saving conversation history.

A collection of 40+ free, browser-based color tools and SVG generators for creating backgrounds, patterns, textures, gradients, and shapes. Each tool works directly in the browser with zero signup required. Perfect for web designers and developers who need custom visuals without opening heavy design software.

A browser-based debugger for JSON Web Tokens. Paste any JWT to instantly decode its header, payload, and signature. Verify token signatures with your secret or public key. Supports HS256, RS256, ES256, and other common algorithms — all processing happens in your browser with no account required.

Datasette running entirely in your browser via WebAssembly (Pyodide). Upload SQLite databases or CSV files and explore them with a full SQL interface — no server, no account, and your data never leaves your device. Built on the popular Datasette data exploration framework by Simon Willison.

Expert guides on low-risk investing strategies, ETFs, dividend stocks, and smart portfolio management. Trilingual content for conservative investors looking to grow wealth steadily.

iFormat.io is a free online file converter that supports over 500 format conversions. The tool works directly in your browser—no installation or registration required. Users can quickly and securely convert images, PDFs, audio and video files, as well as Office documents. Supported Categories: - Images: JPG, PNG, WebP, HEIC, GIF, TIFF, and more - PDFs: Convert, compress, merge, split, and extract text - Audio: MP3, WAV, FLAC, AAC, OGG, and more - Video: MP4, AVI, MOV, and other formats - Docume

Virtual whiteboard for sketching hand-drawn like diagrams. Supports real-time collaboration, export to PNG/SVG, and has a library of shapes and icons.

Online regex tester and debugger for PHP, PCRE, Python, Golang, and JavaScript. Build, test, and debug regex patterns with real-time explanation and match highlighting.

Up-to-date browser support tables for web technologies including HTML5, CSS3, SVG, and JavaScript APIs. Essential reference for web developers.

Create and share beautiful images of your source code. Choose from dozens of syntax themes, languages, and export to PNG or SVG.

Collection of free online tools for PDF, video, image, and file conversion. Files are deleted after processing. No watermarks or file size limits.

Advanced graphing calculator implemented as an interactive web application. Plot functions, create tables, add sliders, animate graphs, and explore math visually.

Optimize and compress SVG files with a visual interface. Built by Jake Archibald, powered by SVGO.

Generate favicons from text, images, or emojis. Download in multiple sizes and formats for your website.

The Cyber Swiss Army Knife — encode, decode, encrypt, compress, and analyze data with a drag-and-drop recipe builder.

Visual cron expression editor with human-readable explanations. Quickly build and validate cron schedules.

Find the cost of adding an npm package to your bundle. View size, download time, and composition of any package.

Parse and explain shell commands. Paste any command line to get a detailed breakdown of each argument and flag.

Collection of 70+ developer utilities: hash generators, encoders, converters, formatters, and more — all in one place.

Create hand-drawn style presentation slides using the Excalidraw engine. Build unique, sketch-like slide decks.

Comprehensive browser fingerprinting test suite. Check what information your browser reveals: IP, WebRTC, Canvas, fonts, and more.

Test how well your browser protects you from tracking. By the Electronic Frontier Foundation (EFF).

Share files instantly with nearby devices on your local network. Open-source successor to Snapdrop with P2P transfer.

Send self-destructing encrypted notes. The message is automatically deleted after being read — perfect for sharing sensitive information.

P2P file sharing in your browser. Like Apple AirDrop but works across all platforms — no app installation needed.

Learn CSS Grid layout by tending a virtual garden. Water your carrots through 28 progressively challenging levels.

World's largest cost of living database. Compare prices, rent, groceries, and quality of life across cities worldwide.

Beautiful personal finance calculators for retirement, investment, mortgage, and budgeting. Interactive visualizations with no data collection.

Interactive compiler explorer that shows assembly output for 60+ languages. Compare compilers and optimization levels side by side.

Official Go online compiler and execution environment. Write, compile, and run Go code directly in the browser.

Create flowcharts, sequence diagrams, Gantt charts, and more using simple text syntax. Live preview with export to SVG/PNG.

Check HTML and CSS support across email clients. Like Can I Use, but for email — know what works in Gmail, Outlook, Apple Mail, and more.

Compare npm package download trends over time. See package sizes, GitHub stars, and make informed dependency decisions.

Simple HTTP request and response service for testing. Inspect headers, cookies, auth, redirects, and response formats.

Web accessibility evaluation tool by WebAIM. Enter any URL to get a detailed accessibility report with WCAG compliance checks.

Preview and generate social media meta tags. See how your page looks on Google, Facebook, Twitter, LinkedIn, and more.

Generate unique SVG background shapes — waves, blobs, gradients, stacks, and more. Export as SVG or PNG for your designs.

Visual CSS gradient generator with a beautiful UI. Create linear, radial, and conic gradients with instant code output.

Visual neumorphism CSS generator. Adjust size, radius, distance, intensity, and color to create soft UI shadow effects.

AI-powered font pairing generator using deep learning. Generate harmonious font combinations for headings, subheadings, and body text.

Generate Tailwind CSS color scales from any color. Get a complete 50–950 shade palette with one click, ready for your config.

Minimal distraction-free writing environment. Just open and start writing — no toolbar clutter, no distractions.

Animated visualizations of data structures and algorithms. Step through sorting, graph traversal, tree operations, and more at your own pace.

Visualize code execution step by step. See variables, stack frames, and heap objects for Python, Java, C, C++, and JavaScript.

Learn SQL by solving a murder mystery. Use SELECT, JOIN, WHERE, and more to query the database and catch the killer.

Watch sorting algorithms in action with animated bar charts. Compare bubble sort, quicksort, merge sort, and more side by side.

Check if your DNS requests are leaking outside your VPN tunnel. Run standard or extended tests to verify DNS privacy.

Comprehensive leak detection: IP address, DNS servers, WebRTC, geolocation, and browser fingerprint. Essential VPN verification tool.

Analyze HTTP security headers of any website. Get a grade and recommendations for CSP, HSTS, X-Frame-Options, and more.

Open-source data visualization framework. Paste your data, choose a chart type, and export beautiful visualizations as SVG or PNG.

Multi-format code and data transformer. Convert between JSON, YAML, CSV, TypeScript, GraphQL, and many more formats instantly.

Convert Markdown to interactive mind maps. Write structured Markdown and see it transform into a zoomable, navigable tree visualization.

Collection of ready-to-use CSS animations. Preview, customize timing and easing, then copy the generated CSS code.

Cut and trim audio files online. Support for MP3, WAV, OGG, and 300+ formats — process files directly in the browser.

Curated ambient and electronic music mixes designed to aid concentration while programming. 60+ episodes of focus music.

One-click copy for special characters, symbols, and emoji. Browse categories or search — click any character to copy it instantly.

Exact current time synced with atomic clocks. World clock, time zone converter, and countdown timers with millisecond precision.

End-to-end encrypted file transfer up to 10 GB. Files are encrypted in the browser before upload — no one else can read them.

Interactive neural network visualization in the browser. Experiment with layers, neurons, activation functions, and learning rates to understand how neural networks learn.

AI-powered task management collection designed for neurodivergent users. Magic ToDo breaks overwhelming tasks into manageable steps with adjustable complexity. Free forever, no ads.

Kuakua.app is your AI-powered hub for mental health resources, mindfulness meditation, and positive psychology games. Take science-backed quizzes, play brain-boosting tasks, and unlock daily affirmations to feel happier, calmer, and more resilient—anytime, on any device.

Free browser-based science and math simulations from the University of Colorado Boulder. Over 150 interactive HTML5 simulations covering physics, chemistry, biology, earth science, and math — all usable directly in the browser with no account required.

Convert between 200+ formats with precision. Audio, video, images, documents — powered by professional-grade tools.

A free group scheduling tool that lets anyone create a meeting availability poll and collect responses without accounts or signups. Participants mark their available times on a shared visual grid, and the best meeting window emerges as a color-coded heat map. No login required for organizers or participants.

Open-source browser-based audio editor with waveform visualization, cut/copy/paste editing, and effects including normalize, fade in/out, reverse, and amplify. Processes audio entirely in your browser — no uploads to any server.

A browser-based file encryption and decryption tool that works entirely client-side. hat.sh uses AES-256-GCM encryption with either a password or public/private key pair. Files never leave your browser — no uploads, no servers, no accounts.

A collaborative digital whiteboard with a clean, minimal interface. Draw freehand, add shapes, arrows, text, and sticky notes to create diagrams and visual notes.

Google-built image compression tool that runs entirely in the browser. Compare original vs compressed side-by-side, supports WebP, AVIF, MozJPEG, and more.

Cloud-enabled, mobile-ready, offline-storage compatible Markdown editor. Preview rendered Markdown in real-time as you type.

Combines multiple API documentations in a fast, organized, and searchable interface. Covers JavaScript, HTML, CSS, Node.js, Ruby, Python, and hundreds more.

Free and easy-to-use online PDF tools: merge, split, compress, convert, rotate, watermark, and more. All processing happens in the browser.

Check if your email address or phone number has been compromised in a data breach. Covers billions of records from known breaches and pastes.

Open-source tests of web browser privacy. Compares tracking protection, fingerprinting resistance, and other privacy features across major browsers.

Online tool for converting between CSV, JSON, and SQL formats. Also includes data cleaning and transformation utilities. All processing happens in the browser.

Free, open-source video conferencing that works directly in your browser. Create a room and share the link — no account, download, or plugin needed.

Free dynamic mathematics software for all levels of education. Combine geometry, algebra, spreadsheets, graphing, statistics, and calculus in one interactive tool.

Official SEC compound interest calculator. Estimate how your savings or investments could grow over time with compound interest. Simple, trustworthy, no ads.

Currency converter showing the real, mid-market exchange rate. Compare rates from banks and transfer services to see how much you could save.

Create flowcharts, UML diagrams, network diagrams, and more. Formerly draw.io, the most powerful free online diagramming tool.

Write, compile, and run TypeScript code in the browser. Official Microsoft tool with full type checking and IntelliSense.

Create beautiful code screenshots with customizable themes, backgrounds, and padding. By Raycast.

Simple internet speed test by Netflix. Open the page and it instantly starts measuring your download speed.

Learn CSS Flexbox through a fun frog-themed game. Complete 24 levels to master flexbox properties like justify-content and align-items.

Official Rust online compiler and execution environment. Write, compile, and run Rust code directly in the browser.

Open-source API development ecosystem. Test REST, GraphQL, WebSocket, and more — a lightweight Postman alternative.

Visualize and explore Abstract Syntax Trees for many languages and parsers. Essential tool for compiler and tooling development.

Generate quality badges for your README and documentation. Hundreds of integrations for build status, coverage, version, and more.

Preview Prettier code formatting results online. Experiment with options and see formatted output for JavaScript, TypeScript, CSS, and more.

Generate beautiful SVG wave shapes for section dividers. Customize layers, colors, and complexity with a simple UI.

Preview color palettes on a real page layout in real time. See exactly how your colors look on text, buttons, and backgrounds.

Curated collection of beautiful color palettes. Browse trending palettes or search by color — one-click copy hex codes.

Visual type scale calculator for building harmonious typography. Choose a base size, scale ratio, and preview your type hierarchy.

Color palette inspiration with real-world context. See how color schemes look applied to an actual website layout, not just swatches.

Visual CSS cubic-bezier timing function editor. Drag control points to create custom easing curves and compare with presets.

Full-featured in-browser Markdown editor. Sync with Google Drive and GitHub, live preview, scroll sync, and offline support.

Markdown-powered paste service. Write, publish, and share formatted text instantly — with edit codes for future updates.

Minimalist, customizable typing speed test. Track WPM, accuracy, and consistency with multiple test modes and themes.

Learn CSS selectors by playing a dinner-themed game. Complete 32 levels from basic selectors to advanced pseudo-classes.

Interactive regex tutorial with step-by-step lessons. Learn regular expressions from basic patterns to advanced lookaheads.

Create, edit, and visualize GeoJSON data on an interactive map. Draw points, lines, and polygons with instant code output.

Apply glitch effects to images and videos. 27 mosh effects including pixel sort, RGB shift, jitter, and VHS — all in the browser.

Browse and download 500,000+ free SVG icons and vectors. Search by keyword, customize colors, and copy SVG code directly.

Comprehensive internet speed and latency test by Cloudflare. Measures download, upload, latency, jitter, and packet loss.

Share secrets securely with end-to-end encryption. Messages self-destruct after being read or after a set expiration time.

Financial independence retirement calculator. Simulate withdrawal strategies with historical market data and Monte Carlo analysis.

Offline-first personal budget manager inspired by YNAB. Envelope budgeting with automatic sync — all data stays on your device.

Free AI chatbot powered by GLM-5 and GLM-4.7 from Zhipu AI. Supports multilingual conversation, coding assistance, and data analysis.

Google's no-code tool for training machine learning models in the browser. Train image, sound, or pose recognition models with your own data, all processed client-side.

A simple yet powerful Chrome extension that helps you extract and export cookies from any website with just one click.

Trace the origins of any website through the Internet Archive. Look up any domain to receive a certified age badge with birth date, longevity ranking, historical timeline, and embeddable SVG badges for your website or README.

This is a tool website forked from it-tools, containing 100+ tools.

Fast, web-based, JavaScript-driven SVG drawing editor. Create and edit SVG images directly in the browser with a familiar drawing application interface.

Run SQL queries online against MySQL, PostgreSQL, and SQLite. Test schemas and queries without installing a database.

Save permanent snapshots of web pages. Archive any URL to preserve its content — useful for citations, research, and bypassing paywalls.