seven

seven made ReactionTimeLab — Reaction Games

A free collection of browser-based reaction games that challenge your timing, focus, and reflexes. Play quick-draw duels, balloon challenges, popup games, and more. No downloads or signup required.

seven made Eye Test Online

Explore visual acuity, color vision, contrast sensitivity, astigmatism, and other vision screening activities directly in your browser. Free, accessible, and designed for educational use.

seven made DrawGrid

A free browser-based drawing grid maker for artists. Add customizable grids to photos, create printable worksheets, and generate perspective guides without uploading images or creating an account.

seven made ChordFold

ChordFold is a browser-based AI chord finder that helps musicians discover chord progressions from recorded music. Users can select an MP3, WAV, or another browser-supported audio file, and ChordFold estimates the chords and their timing. The recognition model runs locally ... more

seven made WebGPUStress

WebGPUStress is a free browser-based graphics testing platform for developers, gamers, and PC enthusiasts. Instead of installing a traditional desktop benchmarking application, users can run configurable GPU workloads directly in a supported web browser. The main GPU stress ... more

seven made PrintPageCheck

PrintPageCheck is a free browser-based tool that helps people check printer quality without downloading software or signing up. The idea came from a simple problem: when a printer starts producing faded colors, blurry text, unwanted stripes, or incorrect margins, printing anot ... more