Free Online Tools

Calculate your exact age in years, months, and days. Find the duration between any two dates.

Add or subtract days from any date. Calculate the exact number of days between two dates.

Count words, characters, sentences, and paragraphs in real time. Includes reading time estimator.

Convert text between uppercase, lowercase, title case, and sentence case. Instant formatting for any text.

Generate free QR codes from URLs, text, or contact info. Download as PNG or SVG instantly.

Convert between units of length, weight, temperature, area, volume, speed, and more.

Generate random numbers within any range. Perfect for games, raffles, contests, and sampling.

Free online stopwatch with lap timing. Start, pause, and record lap times. Accurate to milliseconds.

Convert time between any time zones instantly. Perfect for scheduling meetings across countries — always free.

Compress PNG, JPEG, and WebP images online. Reduce file size without losing quality.

Format, validate, and beautify JSON data online. Fix messy JSON in one click.

Write Markdown and see the rendered HTML preview in real-time. Great for docs, READMEs, and notes.

Generate random UUID v4 identifiers. Perfect for database keys, API tokens, and unique IDs.

Generate Lorem Ipsum placeholder text for designs and mockups. Customize paragraphs and sentence count.

Convert numbers between binary, decimal, and hexadecimal. Essential tool for programmers and students.

Convert CSV data to formatted JSON instantly. Auto-detects delimiters. No upload required — 100% free.

Encode and decode HTML entities instantly. Convert special characters to HTML-safe format — free online tool.

Calculate percentages instantly. Find percentage of a number, percentage change, increase/decrease.

Calculate your Body Mass Index (BMI) instantly. Find your ideal weight range based on height and age.

Generate strong, random passwords with customizable length and character sets. Secure and private.

Pick colors visually and convert between HEX, RGB, and HSL formats. Essential for designers.

Generate beautiful random color palettes. Lock colors you like and regenerate the rest. Click to copy HEX codes.

Check text contrast for WCAG accessibility compliance. Instant AA/AAA ratings — free tool for designers & developers.

Calculate monthly loan payments, total payment, and total interest. Free mortgage and auto loan calculator.

Calculate restaurant tips instantly. Split the bill between friends. Quick tip percentages at your fingertips.

Calculate sale prices and discounts. See how much you save with percentage or fixed amount discounts.

Flip a virtual coin online. Heads or tails — perfect for making quick decisions and settling debates.

Roll virtual dice online. Supports d4, d6, d8, d10, d12, d20, d100. Perfect for board games and D&D.

Plays everything: video, audio, DVDs, streams. 3.5+ billion downloads. The #1 free media player for Windows & Mac.

Free screen recording and live streaming. Record your screen, gameplay, or webcam. Used by millions of streamers.

The best free password manager. 100M+ users. Sync passwords across all devices. Never forget a password again.

Convert any video to MP4, MKV, or WebM. Compress large videos without losing quality. Free & open source.

Professional photo editing, completely free. Retouch photos, create graphics, edit images like Photoshop.

Free Microsoft Office alternative. Word processor, spreadsheets, presentations. Compatible with Word, Excel, PowerPoint.

Merge, split, sign, and convert PDFs — all in your browser. No upload, 100% private. The ultimate free PDF tool.

Record, edit, and mix audio like a pro. Remove noise, add effects, cut tracks. The standard for free audio editing.

Manage your ebook library. Convert between all ebook formats. Transfer to Kindle, Kobo, and other e-readers.

Generate stunning AI images from text. Free, private, unlimited. The most popular open source AI art tool.

Run ChatGPT-like AI (Llama, Mistral, DeepSeek) on your own PC. Private, free, works offline.

OpenAI's free voice recognition. Convert audio and video to text with incredible accuracy. Supports 99 languages.

Combine multiple PDF files into one — free, no upload. Merge PDFs directly in your browser in seconds.

Convert JPG, PNG, WebP images to PDF for free. No upload, no watermarks. Works offline in your browser.

Download videos from YouTube, Twitter, Instagram, TikTok — 1,800+ websites. The #1 video downloader on GitHub.

Build AI chatbots, workflows, and agents visually. No coding needed. The most popular open-source LLM app platform.

Build your own AI knowledge base. Upload PDFs, docs, and ask questions. Best RAG engine for complex documents.

Node-based AI image generation. Drag & drop to create unlimited AI art workflows. The pro tool for Stable Diffusion.

Upscale images 4x with AI. Turn blurry photos into sharp high-res — completely free and offline.

Transfer files between iPhone, Android, Windows, and Mac — no internet needed. Free, open-source, cross-platform.

Open-source note-taking with markdown, sync, and encryption. The best free alternative to Evernote and Notion.

Open-source Notion alternative. Tasks, notes, databases, kanban — all local-first with AI built in.

Trim and cut videos without re-encoding. Extract clips instantly — the fastest video cutter on GitHub.

Build AI knowledge bases with visual workflows. Drag-and-drop RAG pipeline builder for enterprise documents.

Build an AI knowledge base in 5 minutes. Embed on any website with one line of code. No coding needed.

Professional video editing, completely free. Effects, transitions, auto-captions. The best free video editor for everyone.

Extract and compress any archive: ZIP, RAR, 7z, TAR, GZIP — 50+ formats. The most trusted free compression tool worldwide.

Completely uninstall programs and remove leftover files. Force-remove stubborn apps that won't uninstall normally. No installation needed.

Turn static images into animated videos with AI. Create smooth animations from any picture — free and open source.