Outils pour développeur gratuits qui fonctionnent dans le navigateur

Developer tools regularly handle data that should not leave your environment: JWT tokens with user claims, API payloads with credentials, environment configs, SQL queries with schema details, and log excerpts with internal identifiers. DevME runs every utility locally in your browser — nothing is sent to a server. You can inspect, transform, and validate data without exposing it to a third-party service.

This matters especially for production JWTs, internal API responses, and any snippet that includes keys, secrets, or personally identifiable information. The behavior is the same for all tools in DevME: local execution, no logging, no retention.

DevME covers the tasks that interrupt a development session when the right utility is not at hand: formatting a JSON response to read it, decoding a JWT to inspect its claims, generating a UUID for a test record, hashing a string to verify integrity, diffing two config files, or testing a regex against sample input before writing it into code.

The tools are organized by category — JSON, encoding, security, regex, text, and diff — so you can find what you need without scrolling through an unrelated list. Each utility opens immediately with no sign-in or setup.