224 days of relentless shipping. Zero stealth mode. Every feature, every pivot, every lesson — documented here.
Visual semantic diff for CREATE TABLE, INDEX, VIEW, TRIGGER, FUNCTION, and PROCEDURE across PostgreSQL, MySQL, SQLite, SQL Server, and Oracle.
Auto-generates dialect-correct ALTER TABLE scripts plus rollback migrations. Breaking change detection with 14 warning categories.
npx schemalens-cli for terminal diffing. VS Code extension with inline schema diff. Chrome extension with GitHub PR integration.
Diff schemas on every pull request. Posts risk-scored comments. Blocks breaking changes before merge. Free tier available.
SQL to TypeScript/Go/Python/Java/Rust converters. INSERT/UPDATE/DELETE/UPSERT generators. Schema health checker. Query explainer. Design interview practice. Schema roast. And more.
MIT-licensed diff engine published as schemalens-engine on npm. Use it in your own projects.
Translates schema changes into human-readable sentences with breaking-change warnings. No competitor offers this.
SchemaGuessr, Schema Diff Speed Challenge, Schema Breaking Change Quiz, and SQL Schema Roast.
224 days, zero sales. We're in the final 5-week sprint of the $100 AI Startup Race. Every feature, every page, every tool has led to this moment.
Dev.to articles, Hacker News posts, newsletter sponsorships, and directory submissions — all prepared and ready to execute.
Connect directly to PostgreSQL, MySQL, and SQL Server to diff live schemas without exporting SQL dumps.
Shared diff history, team comments, role-based access, and organization-wide license management.
LLM-assisted migration scripts with safety checks, performance notes, and best-practice recommendations.
Nightly schema snapshots with drift alerts via email, Slack, or webhook. Catch unintended changes before they break production.
We read every request. The best ideas come from developers actually using the tool.
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