01 / Supabase
Supabase RLS Playground
Run your policies against real Postgres, as four identities at once
Tools / Mahdi Ben Rhouma
A faster starting point
for a stubborn error.
Nine free tools on iloveblogs. Choose the symptom, open the tool, and use its explanation alongside the linked documentation. Six share their core logic with the public error-explainer library.
02 / Next.js
Next.js Build Error Decoder
Paste a failing build, get the exact fix
03 / Next.js
Next.js Env Leak Checker
Catch secrets leaking into the client bundle
04 / Supabase
Supabase RLS Policy Debugger
Decode RLS errors, get corrected SQL
05 / Next.js
ChunkLoadError Cache Checker
Paste your headers, see why chunks fail after a deploy
06 / Supabase
Supabase DATABASE_URL Doctor
Pooler vs direct, 5432 vs 6543, the password encoding
07 / Next.js
CORS Error Explainer
Paste the console error, get the missing header
08 / TypeScript
Node.js ESM/CommonJS Error Explainer
ERR_REQUIRE_ESM, import outside a module, .ts extension
09 / TypeScript
npm ERESOLVE Explainer
Paste the npm log, see which peer range fails and why
dev-error-explainers
The explanation has public source.
Six tools use modules from the public library. Read the contract, fixtures and other ways to use the same logic.