Tech
1,683 interactive pages · most loved first · page 49 of 71· Tonble one of these
regex101
An online tool to build, test and debug regular expressions with live explanation.
RegexOne
Interactive lessons that teach regular expressions step by step with instant pattern-matching feedback right in the brow…
Regexper
A tool that converts a regular expression into a readable visual diagram, showing the flow of groups and alternatives in…
RegExr
A live regular-expression editor that highlights matches, capture groups, and errors in real time as you type a pattern…
Related Subreddits by User Overlap
A network graph of the top subreddits that maps how they relate to one another based on how many users they share, so yo…
ReMemory
A browser-based digital safe split across several keys held by people you trust, so you can regain access to your comput…
Remove Vocals
A free tool that uses AI to strip vocals from any song and give you an instrumental karaoke track, with two free runs a…
remove.bg
An AI tool that automatically erases the background from any photo in a few seconds, leaving a clean transparent cutout…
ResizeMyImg
A clean, simple online image tool for resizing, cropping, rotating, compressing and converting photos to JPG, PNG or GIF…
Resn
The portfolio of a New Zealand digital studio known for whimsical, award-winning WebGL experiences and playful interacti…
Resume Maker
A simple, free, interactive resume builder that lets you fill in your details and watch a formatted resume take shape ri…
Resumegen
A single-page tool that turns a form of your experience, skills, education and awards into LaTeX source for a Deedy-styl…
Retriever
A browser tool for sharing secrets securely using web crypto with no server involved, so passwords and keys never pass t…
RetroTick
An x86 emulator in the browser that runs classic Windows and DOS executables directly, so you can relive old programs an…
Reveddit
A tool that reveals which of your Reddit comments and posts were removed by moderators without notice, found by entering…
Reverse Dictionary
A reverse dictionary where you describe a concept in your own words and get back the words that best fit, handy for the…
Ridealong
An interactive 3D London where you board a live Tube train and ride it through the city, with real-time positions recons…
Ringcraft
A browser-based 3D ring generator that lets you tweak shapes and patterns to produce jewelry models you can rotate and i…
Ripolas Background Remover
A free background remover that runs entirely in your browser, producing full-resolution transparent PNGs with no login,…
Ripples3
A small creative-coding experiment about liquid and ripples by nicopowa, shared with its source on GitHub as a short vis…
Robert Hodgin / flight404
The experimental portfolio of creative coder Robert Hodgin, filled with particle systems, flocking simulations, and gene…
Roboglyphics
A procedural handwriting generator that scrawls endless gibberish script in styles from robotic to fantastical, with spe…
RoboHash
A generator that turns any text into a unique robot, monster, or cat image, so every word you type yields its own hand-d…
RoboPianist
A browser simulation of a pair of robot hands learning to play the piano, running a physics model so you can watch the r…
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