Public deterministic result

SHA-1

Collision-broken
Input
1loa13
Iterations
1
Hash 4d48cf739be748161017838b739bb4533b9ad7a4
160 bits 40 hex characters 64-byte block
Other algorithms1loa13 encoded to other algorithms, calculated explicitly when needed

The initial result calculates only the requested algorithm.

Calculate all hashes
VariationsBounded related public inputs

Algorithm guidance

About SHA-1

SHA-1 is widely interoperable but must not be used where collision resistance matters.

Legacy checksums and compatibility only. Prefer SHA-256 for new work.

Read the SHA-1 reference
Hash another valueUses the private calculator flow

Digest calculator

Text to hash

Private result

Never enter a real account password or any other secret. Submitted text is processed by the server, but never placed in the URL, logs, analytics, or ads.