🌍 Useful Free Online Tools & Sites
A categorized directory of useful free online tools and websites, including AI, audio, design, security, converters, maps, productivity, and more.
📌 Table of Contents
- 3D · VR · IRL
- Aeronautics and Space
- Agile
- AI
- Air Traffic
- Animation
- Anti Virus
- APIs
- Audio, Music and Sounds
- Banks
- Barcodes
- Bitcoins
- Bread and Baker
- Calculators & Converters
- Charts
- Climatology
- Cloud Computing
- Colors
- Cron
- Data
- Databases
- Diagrams & Design
- Documents
- Excel
- Fonts
- History
- HTML
- Icons & Logos
- Images and Graphics
- JSON
- Jobs
- Knowledge
- Maps and GPS
- Maths
- Miscelanea
- Museums
- Musical Production
- Network
- OS (Operating System)
- Painting
- Photography & Photographers
- Planes and Flights
- Productivity
- Programmer Utilities
- Programming Languages
- QR
- Radio & TV
- Retro
- Reverse Engineering
- Scrapping
- Search
- Security
- SEO
- Sharing
- Ships
- Shopping, Prices & Stores
- Slides
- Social Networks
- Status
- Strings and Texts
- Technology
- Time
- Translate
- User Profile
- Videos
- Weather
- Web
- Webcams
- Word
🧊 3D · VR · IRL
🚀 Aeronautics and Space
- 100,000 Stars - Visit the space, stars, etc
- NASA - Eyes on Asteroids - Take a deeper dive into Asteroids
🔄 Agile
- Reetro - Free Online Retrospectives
🤖 AI
- Adobe Enhance Speech - Clean up audio for free with Adobe Podcast AI
- AI Image Generator - Create an image from text prompt
- AI Image Upscaler - Use AI to upscale the quality of your image
- AI Music Generator - Transform your ideas into songs instantly
- AI Painter - See your photo turned into artwork in seconds
- AIVA - AI Music Generation Assistant
- Basic Pitch - Free audio-to-MIDI converter with pitch bend detection
- Beatoven - Create customisable royalty free music
- Big Speak - Generate English speech from text with AI
- Bing Image Generator - Create images from words with AI
- Bored Humans - AI art & creative tools
- ChatGPT - Optimizing Language Models for Dialogue
- ChordChord - ChordChord makes it easy to start your music
- ClipDrop - Create stunning visuals in seconds with AI
- Craiyon - Create AI Art with our free AI image generator
- CapCut - Free all-in-one video editor
- DeepL - Translate documents or presentations
- ElevenLabs - Create realistic speech with AI
- Fadr Stems - AI Vocal Remover
- Future Tools - Find AI tools
- Generated Photos - Photos generated completely by AI
- Google Magenta Studio - Music plugins built on open source models
- Google AutoDraw - Fast drawing for everyone
- Google Gemini - Chatbot to write, learn, plan trips
- Ideogram - Generates realistic images
- Immersity AI (LeiaPix) - Add 3D effects to images
- Krea - Real-time generation
- Leonardo.AI - Create production-quality visual assets
- Luma Labs - Dream Machine - High quality AI videos
- Magnific - Image upscaler, enhancer & transformer
- Microsoft Copilot - AI assistant
- Midjourney - AI image generator
- Napkin - Visual AI for business storytelling
- OpenAI Tokenizer - OpenAI token visualization
- Perplexity - AI Search Tool
- Runway GEN-3 - Text-to-video generation
- Stable Diffusion - AI image generator
- Suno AI - AI music creator
- TTSMP3 - Text to speech and text-to-mp3
- Uberduck - Synthetic speech toy
- Udio - AI music generation
✈️ Air Traffic
- TheAirTraffic - Air Traffic in real-time
🎞 Animation
- ASCII Motion - Create and animate ASCII art
🛡 Anti Virus
- VirusTotal - Analyse suspicious files, domains, IPs and URLs
🔌 APIs
- Any API - Public API directory
- API Directory - Search API directory
- Postman Web - API testing platform
- REQBIN - Online REST & SOAP API testing tool
🎧 Audio, Music and Sounds
- BBC Sound Effects - Search BBC sound effects
- FreeSound - Creative Commons sound database
- LALAL.AI - AI stem separation
- Loudness Penalty - Check loudness penalties
- Online Metronome - Online metronome
- Tunebat - Key & BPM database
- Mp3Cut - Audio cutter
- Stem Splitter - Isolate vocals/instruments
- Text to Speech - Text-to-mp3/wav
🏦 Banks
⚠️ Some tools here may be used for fraud. Use only for legal testing/education.
- Generate IBANs - Random IBAN generator
🏷 Barcodes
- EAN 8 Generator - Generates EAN8 barcode
- EAN 13 Generator - Generates EAN13 barcode
- UPC-A Generator - Generates UPC-A barcode
- UPC-E Generator - Generates UPC-E barcode
₿ Bitcoins
- Mastering Bitcoin Book - Mastering Bitcoin book for developers
🍞 Bread and Baker
- Simple Sourdough Calculator - Baker’s math sourdough calculator
🧮 Calculators & Converters
- CoordConv - Coordinate converter
- Convertio - File converter
- Unit Converter - Convert between units
- Percentage Calculator - Calculate percentages
- Torque Converter - Torque unit converter
📊 Charts
- Live Gap Charts - Create charts online
🌦 Climatology
- Embalses.net - Spanish reservoir and precipitation status
☁️ Cloud Computing
- CNCF Cloud Native Landscape - Cloud Native ecosystem
- Azure Services - Azure services list
- Azure Status - Azure service status
🎨 Colors
- Adobe Color Wheel - Color wheel
- Color Hunt - Color palettes
- ColorSpace - Generate color palettes
- RGB to HEX - Convert RGB to HEX
⏱ Cron
- Cron Expression Descriptor - Human-readable cron expressions
📂 Data
- Remove Duplicate Lines - Remove duplicate lines
- DeDupeList - Remove duplicates from lists
🗄 Databases
- ChartDB - Create database diagrams
- DB Diagram - Draw ER diagrams
🧩 Diagrams & Design
- Draw.io - Online diagram editor
- Excalidraw - Whiteboard tool
- Canva - Visual design platform
- Coggle - Mind map tool
📄 Documents
- I Love PDF - PDF tools
- Smallpdf - PDF converter/editor
- PDFescape - Online PDF editor
✉️ Email
- Guerrilla Mail - Temporary email
- TempMail - Temporary email service
📊 Excel
- Table Convert - Convert Excel to Markdown tables
🔤 Fonts
- Font Squirrel - Free fonts
- Font Meme - Signature creator
🏛 History
- Trajan Column Story - Story of Trajan’s Column
🌐 HTML
- HTML Formatter - Format HTML
- HTML Online Viewer - View HTML online
🧷 Icons & Logos
- Flaticon - Vector icons
- SVG Repo - Free SVG icons
- Noun Project - Icons and photos
- SVGOMG - SVG optimizer
🖼 Images and Graphics
- Photopea - Online photo editor
- Remove.bg - Remove background
- Ezgif - GIF editor
- Unsplash - Free stock photos
- Pexels - Free photos and videos
- Pixabay - Free images and videos
🧾 JSON
- JSON Formatter - Format JSON
- JSON Diff - Compare JSON
- JWT Decoder - Decode JWT
💼 Jobs
- arc - Remote job search
📚 Knowledge
- arXiv - Open-access research archive
- Academic Torrents - Research data torrents
🗺 Maps and GPS
- EPSG.io - Coordinate systems
- GeoJson.io - Edit GeoJSON
- OpenStreetMap - Free map data
- Google Earth - 3D map
➗ Maths
- Desmos - Online graphing calculator
🎲 Miscelanea
- This Person Does Not Exist - AI-generated human faces
- Scrt.link - Share secret messages
- Nuclear Blast Simulator - Nuclear simulation tool
🏛 Museums
- Basilica di San Pietro - Virtual 3D tour
🎼 Musical Production
- Bandcamp - Music discovery platform
- Every Noise at Once - Music genre explorer
- Infinite Drum Machine - Drum sound generator
- Chrome Music Lab - Music learning lab
- MyNoise - Soundscapes generator
🌐 Network
- Fast - Internet speed test
- IPinfo - IP lookup
- SSL Labs Test - SSL analysis
- WHOIS Lookup - Domain WHOIS lookup
💻 OS (Operating System)
- UUP Dump - Download Windows UUP files
🎨 Painting
- Vervette Fluid Sandbox - Fluid art sandbox
📷 Photography & Photographers
- EXIF Viewer - View EXIF metadata
- Light Pollution Map - Find light pollution
- Ventusky - Weather and wind visualization
✈️ Planes and Flights
- FlightAware - Flight tracking
- Aviation Safety Network - Aviation incidents database
- EU Air Safety List - Airlines banned in EU
🧠 Productivity
- Notion - Workspace
- Pomodoro Tracker - Pomodoro tool
- Microsoft PowerToys - Windows productivity tools
🛠 Programmer Utilities
- Diff Checker - Compare text/files
- Regex Tester - Regular expression testing
- Hash Generator - Generate hashes
- GUID Generator - Create GUIDs
- Unix Timestamp Converter - Epoch converter
👨💻 Programming Languages
- Replit - Online IDE
- CodePen - Front-end playground
- DartPad - Dart online editor
- SharpLab - C# compiler and playground
🔳 QR
- QR Code Generator - Create QR codes
- QRCode.show - QR generator
📻 Radio & TV
- Emisora - Spanish radio channels
🕹 Retro
- MSX System - MSX emulator and resources
🔍 Reverse Engineering
- Fixing the Volume on my Bluetooth Earbuds - Reverse engineering examples
🕵️ Scrapping
- FetchFox - Scrape websites using AI
🔎 Search
- Google Scholar - Academic search
- Internet Archive - Web archive
- Wayback Machine - Website history snapshots
🔐 Security
- SRI Hash Generator - Subresource integrity hash generator
- urlscan.io - URL sandbox scanner
- Cloudflare Radar URL Scanner - URL analysis
📈 SEO
- Google PageSpeed Insights - Speed analysis
- Free Meta Tags Generator - Meta tag generator
📤 Sharing
- WeTransfer - File transfer
- ImgBB - Image hosting
- MyAirBridge - Encrypted file transfer
🚢 Ships
- MarineTraffic - Ship tracking
- VesselFinder - Ship AIS tracking
🛒 Shopping, Prices & Stores
- CamelCamelCamel - Amazon price tracker
- Keepa - Amazon price history
📑 Slides
- View PPS Online - View PPS online
💬 Social Networks
- Giphy - GIFs & stickers
- Meme Generator - Meme creation
- YouTube Thumbnail Downloader - Download thumbnails
- Instagram Downloader - Download IG media
📡 Status
- GitHub Status - GitHub status
- Cloudflare Status - Cloudflare status
- Downdetector - Service outage tracking
🔤 Strings and Texts
- Word Counter - Word count tool
- Text to Image - Convert text into image
- Lorem Ipsum Generator - Placeholder text generator
🧪 Technology
- Killed by Google - Dead Google products
- Killed by Microsoft - Dead Microsoft products
🕒 Time
- World Clock - Current time worldwide
- WorldTimeServer - UTC/GMT time
🌍 Translate
- DeepL Translate - AI translation
- Google Translate Documents - Document translation
👤 User Profile
- GitHub Contributions in 3D - GitHub contributions visualization in 3D
🎥 Videos
- Clideo - Video tools
- Ezgif GIF to MP4 - Convert GIF to video
- Unscreen - Remove video background
- MKV to MP4 - Convert MKV to MP4
🌦 Weather
- Windy - Weather visualization
- SunriseSunset.io - Sunrise and sunset times
- MeteoBlue - Weather forecasts
🌐 Web
- Wayback Machine - Web archive
- Tiny Scan - URL details tool
- Favicon Generator - Generate favicons
📹 Webcams
- Explore Livecams - Livecams worldwide
📝 Word
- Word to Markdown - Convert Word to Markdown format