Supabase Schema Diff.
Generate migrations.
Zero setup.

Supabase Auth & Storage Schema

Diff schemas that include auth.users, storage.buckets, and custom tables. Understands Supabase's default schema layout.

RLS Policy Aware

Detects CREATE POLICY and ALTER POLICY changes. Catch row-level security drift between local and production environments.

Enum & Custom Types

Diffs CREATE TYPE ... AS ENUM statements. Catches added or removed enum values before they break your Supabase client types.

Constraints & Indexes

Primary keys, unique constraints, foreign keys, CHECK constraints, and partial indexes — all compared semantically, not by raw text.

Functions & Triggers

Detects CREATE FUNCTION and CREATE TRIGGER changes. Critical for Supabase projects that rely on database functions for webhooks and computed fields.

Privacy First

Your schema never leaves the browser. Compare production Supabase schemas safely without uploading sensitive table structures to a third-party server.

Add RLS policy

CREATE POLICY "Users can read own data"
  ON "public"."users"
  FOR SELECT
  USING (auth.uid() = id);

Add a new column

ALTER TABLE "orders"
  ADD COLUMN "shipped_at" TIMESTAMP;

Add a foreign key

ALTER TABLE "comments"
  ADD CONSTRAINT "fk_comments_post"
  FOREIGN KEY ("post_id") REFERENCES "posts"("id");

Create function for webhook

CREATE OR REPLACE FUNCTION "public"."notify_change"()
RETURNS TRIGGER AS $$ ... $$;

✅ SchemaLens

• Browser-based — zero install
• Works with any pg_dump or SQL export
• Visual diff with color highlighting
• Detects RLS policies, functions, triggers
• Shareable diff URLs
• Export to SQL, Markdown, PDF, Prisma, Drizzle

❌ Supabase CLI db diff

• Requires CLI installation and login
• Requires linked project
• Text-only output
• No RLS policy diff visualization
• No shareable links
• SQL output only