00Free · no sign-up
Free tools from the studio.
The checks we run on client work, opened up: product feeds for AI-powered shopping, redirect maps for site migrations, and CLAUDE.md for teams building with AI coding agents. No account, no email wall. Everything runs in your browser and your data never leaves your device.
Product feed validator
Paste a CSV, JSON or XML product feed and check it against the spec instantly. See which required fields are missing or malformed and exactly how to fix them.
- Validates structure and required fields
- Runs in your browser, data stays local
- Clear, field-by-field results
Feed syntax reference
A clear, worked reference for RSS 2.0, Atom 1.0 and JSON product feeds: every required element, with valid examples you can copy and adapt.
- RSS, Atom and JSON formats
- Copy-ready valid examples
- Format and pretty-print
Redirect map auditor
Before a replatform, paste your redirect map and URL lists to catch the migration mistakes that cost rankings: unmapped URLs, redirect chains, loops and 301s pointing at pages that won’t exist.
- Finds chains, loops and unmapped URLs
- Runs in your browser, nothing crawled
- Copy-ready flattened map
CLAUDE.md architect
Generate a lean, correctly-scoped CLAUDE.md, or lint the one you have against the current Claude Code memory model: the line budget, instruction ceiling, .claude/rules/ and the @AGENTS.md bridge.
- Generator and linter in one
- Encodes the current Claude Code docs
- Deterministic, nothing sent anywhere
Why these are free
Most tools want your email before they show you anything useful. We think that's backwards. These run client-side, give you the answer immediately, and ask for nothing.
If you'd rather not fix the feed yourself, that's the kind of thing the studio does, but the tools are genuinely free whether you ever talk to us or not.
Want the feed built for you?
Feed generation, data clean-up and AI-commerce readiness are part of our digital marketing and migration work.
See how we can help