A second pair of eyes catches what you stopped seeing hours ago. This tool gives any code snippet a structured review using your own OpenAI or Anthropic key — pick a language and a focus, and get findings ordered by severity with concrete fixes, all in your browser.
How it works
Choose a provider and model, paste your API key, drop in your code, select the language, and pick a review focus: everything, bugs, style, performance, or security. The tool builds a prompt that frames the model as a senior engineer in that language, tells it exactly what to look for, and asks for findings ordered most-serious-first — each with the relevant construct, why it matters, and a suggested fix. It sends one direct request to the provider and returns the review in Markdown.
For Anthropic, the request includes the official direct-browser-access header so it works straight from the page.
Choosing a focus
- Bugs — logic errors, edge cases, incorrect behaviour.
- Style — naming, structure, idiomatic patterns, maintainability.
- Performance — complexity, redundant work, resource usage.
- Security — injection, unsafe input, leaked secrets, auth flaws.
- Everything — a balanced pass across all of the above.
Tips
- Review focused snippets rather than whole files — tighter context yields sharper findings.
- Run a Security pass on anything that touches user input, auth, or external data.
- Always verify a finding before acting on it; AI reviews are a prioritised to-check list, not a verdict.