Hash Calculator
Calculate SHA-256 hashes of text, files or decoded bytes locally, then copy or export the result.
Open
Developer tools
Tools for preparing test data and inspecting technical representations. Choose a task and check the format your project expects.
12 tools
MD5 Generator
Calculate MD5 hashes of text, files or decoded bytes locally, then copy or export the result.
- generator
SHA-1 Generator
Calculate SHA-1 hashes of text, files or decoded bytes locally, then copy or export the result.
- generator
SHA-256 Generator
Calculate SHA-256 hashes of text, files or decoded bytes locally, then copy or export the result.
- generator
SHA-512 Generator
Calculate SHA-512 hashes of text, files or decoded bytes locally, then copy or export the result.
- generator
CRC32 Calculator
Calculate CRC32 hashes of text, files or decoded bytes locally, then copy or export the result.
Open
File Checksum Checker
Calculate and verify file checksums with SHA-256, MD5 and other algorithms without uploading files.
Open
HMAC Generator
Generate HMAC-SHA256 and other SHA-1/SHA-2 message authentication codes from a payload and an explicit key.
- generator
Random String Generator
Generate random strings with an exact character length and your chosen alphabet.
- random
- generator
Random Token Generator
Generate random bytes as Base64url, Base64, Hex, Base32, Base58 or Binary tokens.
- random
- generator
Random Hex Generator
Generate hexadecimal strings with an exact character length or byte length.
- random
- generator
Random Hash Generator
Generate real hash digests from fresh random bytes using SHA-256 and 14 other algorithms.
- random
- generator
Choose the operation
Generating new data and calculating a digest are different operations. Read each tool’s description before choosing it. Test fixtures and locally generated token values do not automatically become credentials accepted by a service.
Check units and destination
Distinguish characters from bytes and raw data from formatted output. Check the encoding, length and export format required by the destination. Each tool explains where processing happens and what is saved; review those details before using sensitive data.