Online Tools
A collection of free online tools for developers and creators.
Popular Tools
Image Resizer / Compressor / Converter
Resize, compress, and convert images online. Pixel, percentage, and fit-within modes. Social media presets, batch processing, and format conversion. 100% browser-based.
Use Tool →Regex Tester / Editor
Test, visualize, replace, and explain regular expressions in your browser. Match highlighting, capture groups, replacement preview, pattern explainer, and cheat sheet. No data sent to server.
Use Tool →Password Generator
Generate secure passwords with custom patterns, character sets, and exclusion rules. All processing happens in your browser.
Use Tool →QR Code Generator
Generate QR codes quickly and easily from any text or URL.
Use Tool →Base64 Encoder / Decoder
Encode, decode, and validate Base64 in your browser. Supports text, files, images, Data URLs, and URL-safe Base64. No data sent to server.
Use Tool →IP Address Checker
Check your public IP address, location, ISP, and connection details instantly. No data stored.
Use Tool →Percentages for design and the shop floor
Yield, fill, tolerance, tax exclusive and inclusive, year-over-year, and percentage points — for design engineers and people on the shop floor.
Use Tool →Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512, SHA-3 hashes and HMAC from text or files. 100% browser-based, nothing sent to servers.
Use Tool →View All Tools
Browse all tools organized by category.
View All →Browse by Category
Recently Added
Earthquake History Map
Scrub through a century of significant earthquakes and tsunamis on an interactive world map. Circle size shows magnitude, human figures show casualties. Auto-play the timeline and watch history unfold.
Use Tool →Hurricane & Typhoon History Map
Watch four decades of hurricanes, typhoons, and cyclones trace their paths across a world map. Track colors show intensity. Scrub the timeline or let it play.
Use Tool →Wildfire History Map
Watch two decades of large wildfires flare up across an interactive world map. Circle size shows burned area, color shows how long each fire burned. Scrub the timeline or let it play.
Use Tool →Volcano Eruption History Map
Explore significant volcanic eruptions from antiquity to today on an interactive world map. Circle size and color show explosivity (VEI), with plate boundaries and earthquake overlays. Scrub the timeline or let it play.
Use Tool →