Apps index

Turn animated GIFs into print-ready kinegrams (scanimations) — the interlaced image and its barrier grid, generated together.

kinegram.3m4.net →

Open-source URL shortener with real click analytics — geo/device/referrer breakdowns, QR codes, a public API and an MCP server for AI agents. Free during early access.

3m4.net →

Open-source user feedback for your apps — bug reports, feedback and feature requests through a drop-in widget or a public API, a public roadmap and changelog users can vote on, and an MCP server for AI agents. Free during early access.

retro.3m4.net →

Open-source knowledge base where people and AI agents are equal users. Markdown pages in projects, published as HTML, raw Markdown and llms.txt, with a REST API and an MCP server.

smart-docs.3m4.net →

Open-source feature flags for projects, people and AI agents — per-environment toggles, percentage rollouts, copy flags between projects, a public API and an MCP server. Free during early access.

exp.3m4.net →

Open-source, privacy-friendly web analytics — page views, visitors, pages, referrers, countries, devices and custom events from one script tag, a pixel or an API call. No cookies, no stored IPs, and an MCP server for AI agents. Free during early access.

metrics.3m4.net →

Open-source error tracking for your apps — the browser SDK and the ingest API catch exceptions, group them into issues by fingerprint, show affected users, releases and environments with breadcrumbs, and let you triage from the dashboard, the API or an MCP server for AI agents. Free during early access.

oops.3m4.net →

A fruit-popping arcade mini-game. Pop fruit, dodge vegetables, chain streaks — classic 2015 edition and a Phaser 3 remaster.

bubbles.3m4.net →