devEncoding & crypto
Browse encoding & crypto tools. Every tool processes your input locally in your browser.
Encoding & crypto
14 toolsHTML Entity Encoder
Escape text for inclusion in HTML text content.
Open tool →HTML Entity Decoder
Decode HTML entities into plain text without executing markup.
Open tool →HMAC Generator
Generate HMAC-SHA-256, SHA-384, or SHA-512 using a local secret.
Open tool →OAuth PKCE Generator
Generate a cryptographically random verifier and S256 code challenge.
Open tool →File Checksum Verifier
Stream a local file through SHA-256 or SHA-512 and compare with an expected checksum.
Open tool →Base64 Encoder / Decoder
Encode and decode UTF-8 text locally in your browser.
Open tool →URL Encoder / Decoder
Encode URL components or decode percent-encoded text locally.
Open tool →Hash Generator
Generate SHA-256 or SHA-512 digests locally with the Web Crypto API.
Open tool →JWT Decoder
Decode JWT headers and payloads locally. Decoding does not verify a signature.
Open tool →JWT Encoder
Create a signed HMAC JWT locally in your browser. Your secret is never uploaded.
Open tool →UUID Generator
Generate cryptographically random UUID v4 identifiers in your browser.
Open tool →ULID Generator
Generate sortable ULIDs locally using browser cryptography.
Open tool →Password Generator
Generate a random password locally. Nothing is sent to a server.
Open tool →Bcrypt Hash Tester
Hash or verify passwords with bcrypt in your browser. Do not reuse production credentials.
Open tool →Every tool processes your input locally in your browser.