Deep-inspect JWT tokens with expiry validation, algorithm analysis, and claim details. Everything runs locally in your browser — nothing is uploaded.
Decode and inspect JWT tokens — view header, payload, expiration, issuer, subject, and other standard claims.
Scan text and code for leaked secrets and credentials. Detects Stripe keys, GitHub tokens, Slack tokens, Google API keys, AWS keys, OpenAI keys, JWT tokens, private keys, and config passwords.
Encode JSON as real CBOR binary and inspect the resulting bytes with major type analysis. Supports both encode and decode modes.
Increases image resolution by up to 4x while reconstructing fine details that standard interpolation loses.
Uses a deep-learning model trained on millions of historical photos to predict plausible per-pixel color for grayscale and sepia images. Everything runs locally in your browser — nothing is uploaded.
JWT Inspector lets you deep-inspect JWT tokens with expiry validation, algorithm analysis, and claim details. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Deep-inspect JWT tokens with expiry validation, algorithm analysis, and claim details. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, JWT Inspector runs entirely on your device with no internet connection needed. All processing is done locally.
Deep-inspect JWT tokens with expiry validation, algorithm analysis, and claim details. Everything runs locally in your browser — nothing is uploaded. All processing runs locally — no code is sent to any server.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check the tool description for specifics.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. Formatters use well-known libraries (sql-formatter, Prettier-compatible patterns) and follow widely adopted rules.
JWT Encoder & Signer
Create and sign JSON Web Tokens with custom header and payload. Supports HS256, HS384, HS512 signing algorithms for API authentication testing.
Two-Factor Auth Generator
Generate TOTP URIs for two-factor authentication setup with authenticator apps. Everything runs locally in your browser — nothing is uploaded.