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Encoding Tools

DevTools Encoding tools cover Base64, JWT decode/generate, SHA256/MD5/HMAC, bcrypt, RSA key pairs, SSL certificate parsing, and password strength — mostly local browser processing.

Base64 Encoder/Decoder

Encode and decode Base64 online—quickly convert between plain text and Base64 strings.

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JWT Decoder

Decode JSON Web Tokens and inspect Header, Payload, and time-related claim fields.

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SHA256 Generator

Generate SHA-256 hash digests from input text for checksums, signing, and integrity verification.

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MD5 Generator

Generate MD5 digests from text—suited for legacy checksums and quick comparison workflows.

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HMAC Generator

Generate HMAC digests with a secret key—useful for webhook signatures and API auth debugging.

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JWT Generator / Signer

Create and sign JWTs—configure Header, Payload, and common claims, then export the token.

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Bcrypt Hash Generator

Generate and verify Bcrypt password hashes with configurable salt rounds to balance security and performance.

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RSA Key Pair Generator

Generate PEM-format RSA public/private key pairs for encryption, signing, and JWT RS256 testing.

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SSL Certificate Decoder

Parse SSL certificates, CSRs, and PEM content—view issuer, SAN, validity, and chain details.

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Password Strength Checker

Assess password strength, length, character coverage, and brute-force cost to help choose stronger credentials.

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About this tool

Encoding and crypto are core to web dev, API auth, and ops. This toolset provides hashing, JWT tools, and certificate parsing in one place.

How to use

  1. Select an encoding tool (Base64, JWT decode, SHA256, etc.).
  2. Enter text, keys, or certificate content.
  3. Copy the computed or parsed result.

FAQ

Are encoding tools secure? Are private keys uploaded?

Most tools compute locally — keys and plaintext are not uploaded. RSA pairs are generated in-browser. Avoid sensitive keys on shared devices.

Does JWT decode verify signatures?

The decoder shows Header and Payload. Signature verification must be done server-side with your secret.

Which hash algorithms are available?

SHA256, MD5, and HMAC (multiple algorithms), all computed locally.

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