Tools

Compress, resize and convert images right in the browser. No uploads — everything stays on your device with a single click.

Rewrite prompts for GPT and Claude with structured framing, role assignment and output constraints. Boosts consistently across models.

Instant, offline JSON formatting, validation and diffing. Paste JSON and get pretty output with collapsible trees.

Batch-convert files between CSV, JSON, XML and Markdown. Secure, offline conversion with previews before download.

A distraction-free markdown editor with live preview, GitHub-flavored dials, export to HTML/PDF and offline support.