SchemaLens Pro gives you unlimited schema diffs, full migration generation, exports (Markdown, PDF, SQL, JSON, Prisma, Drizzle), shareable links, and breaking-change detection.
⏰ Alumni window ends May 28 at midnight UTC — lock in Pro before it closes
Everything in Free, plus the features that save hours every week.
Diff schemas of any size. No 15-table limit. Perfect for large production databases.
Generate complete ALTER TABLE, CREATE INDEX, and DROP statements in PostgreSQL, MySQL, SQLite, SQL Server, and Oracle.
Markdown, PDF, SQL, JSON, Prisma schema, and Drizzle schema. Drop the Markdown straight into a PR.
Send a URL instead of a screenshot. Anyone can open it and see the exact diff you generated.
Risk score flags dropped columns, removed indexes, and type changes that could break production.
Run npx schemalens-cli locally or use the VS Code extension for in-editor diffs.
"I was manually diffing schema dumps with diff -u like a caveman. SchemaLens turned a 20-minute chore into a 10-second paste-and-click. The migration SQL alone saved me an hour last week."
"The breaking change detection caught a dropped column that would have broken our staging environment. I pasted two schemas, hit compare, and immediately saw the red warning. Game changer."
"Zero setup, zero backend, instant results. I used it in a PR review to verify a teammate's migration was safe. Exported the markdown diff straight into the PR description. Perfect."
I'm a solo founder building in public. This launch special is my way of saying thank you to the early adopters who believe in the product before it has 10,000 users. The first 20 customers get an 81% discount as a founding-member thank-you.
Your Pro license is yours forever. Lifetime Pro means you pay once and keep full access indefinitely — all future updates, all new features, no recurring charges. You'll get an email with your license key immediately after purchase.
Absolutely. Every Pro purchase comes with a 14-day money-back guarantee. No questions, no hassle. If SchemaLens doesn't save you time, email hello@schemalens.tech and I'll refund you personally.
100%. SchemaLens runs entirely in your browser. We never see your schemas. The diff engine is custom-built in vanilla JavaScript — no data is sent to any server. You can verify this in DevTools → Network.
Nope. In the app, click "Try Pro Free — 24 Hours" when you hit the 15-table limit. No email, no credit card, no signup. You'll get full Pro access for 24 hours instantly.