QR Code Generator
Make unlimited free QR codes with custom colors, patterns, frames, and logos. No sign-up, no watermark.
Runs as: browserdownloadself-host
Labs · Browser tools, apps and experiments
Labs: things I build because I want them to exist.
Free browser tools, offline-first apps and hardware experiments, built to the same standard as client work. No account, no upload, no trial that runs out.
- browser Everything happens in the tab. Nothing you paste or drop is sent anywhere, because there is nothing in the page that could send it.
- download Take the whole tool as one HTML file. It keeps working with the wifi off, on any device, with nothing else installed.
- self-host Put that file on your own server, or on an intranet with no route out to the internet at all.
Built something you'd want to see here? Found a bug? hello.beben.design@gmail.com
Free tools
Small, single-purpose utilities that run in the tab.
EXIF Viewer and Stripper
See the GPS coordinates, camera serial, and timestamps hidden in a photo, then download a clean copy.
Runs as: browserdownloadself-host
Checksum Verifier
Hash a downloaded file with SHA-1, SHA-256, SHA-384, or SHA-512 and compare it to the published value.
Runs as: browserdownloadself-host
Text Diff
Compare two revisions of a contract or a copy deck side by side, without uploading either one.
Runs as: browserdownloadself-host
Contrast Grid
Paste a whole palette, get every foreground and background pair scored against WCAG AA and AAA at once.
Runs as: browserdownloadself-host
Dither Machine
Drop an image and push it through Atkinson, Floyd-Steinberg, or ordered Bayer dithering. Export the PNG.
Runs as: browserdownloadself-host
Does It Fit?
One text box, checked live against every limit that matters: title tags, meta descriptions, posts, subject lines.
Runs as: browserdownloadself-host
Apps
Installable, offline-first things that do more than one job.
Beben Arcade
Twenty-three tiny 8-bit games at one address. Add it to your home screen, play offline, beat your best. No ads, ever.
Runs as: browserinstall
Corpus
A small library you can carry: thirteen subjects in portable files, answers in milliseconds, no server needed. Formerly Codex, now v2.0.
Runs as: browser
Experiments
Hardware and open projects, documented as they are built.
Essential Watch
A calm, repairable wrist instrument between the Casio F-91W and the Apple Watch Ultra. Spec v6 in the open, with a live emulator.
Runs as: browser
Rev Log
An open source telemetry system for motorcycles: lean, throttle, braking and revs captured on the bike, visualised in the browser, owned by the rider.
Runs as: browser
Next up: JWT Decoder, Passphrase Generator, Colour Blindness Simulator, SVG Cleaner, Favicon Forge, Fluid Type Calculator, Invoice Builder, Freelance Rate Calculator, Screenshot Framer, Barcode Generator.