What does SHA-1 Digest do that other Crypto pages on this site do not?

SHA-1 hex; also input bytes and hex length. Short version: SHA-1 with input bytes.

Does SHA-1 Digest upload my file or text to Tool-You servers?

No. SHA-1 Digest runs in this browser tab. Files stay on the device. Limit note: Empty input fails.

Should I use SHA-256 Digest instead of SHA-1 Digest?

Use SHA-1 Digest when you need SHA-1 with input bytes. Use SHA-256 Digest when you need SHA-256 with input bytes. They share a category (Crypto) but not the same job.

What are the limits of SHA-1 Digest?

Empty input fails. Also: SHA-1 hex; also input bytes and hex length.

SHA-1 Digest

SHA-1 with input bytes.

SHA-1 hex; also input bytes and hex length.

What SHA-1 Digest does

SHA-1 hex; also input bytes and hex length.

SHA-1 Digest sits in the Crypto group on purpose. It is not SHA-256 Digest (SHA-256 with input bytes.) and not HMAC-SHA1 (HMAC-SHA1 hex and Base64; optional uppercase.). Choose this page when you need SHA-1 with input bytes. If you stretch SHA-1 Digest into a neighbor’s job, the result will look wrong even though the site chrome looks the same.

How to use SHA-1 Digest

Keep this tab on SHA-1 Digest (/crypto/digest-sha1). Pasting into the wrong Crypto tool (for example SHA-256 Digest) changes the job.
Paste or type the input SHA-1 Digest expects. Path hint: crypto · digest sha1. SHA-1 with input bytes.
Apply the SHA-1 Digest action only. HMAC-SHA1 is a different transform (HMAC-SHA1 hex and Base64; optional uppercase.). SHA-1 hex; also input bytes and hex length.
Copy the output of SHA-1 Digest if you need it elsewhere. Size/complexity still follows: Empty input fails.
If the text job is actually SHA-256 with input bytes., leave SHA-1 Digest and open SHA-256 Digest.

When not to use SHA-1 Digest

Skip SHA-1 Digest when a neighbor tool matches better — start with SHA-256 Digest or HMAC-SHA1 — or when the description already warns the job will fail. In the tool’s own words: SHA-1 hex; also input bytes and hex length.

Questions about SHA-1 Digest

What does SHA-1 Digest do that other Crypto pages on this site do not?: SHA-1 hex; also input bytes and hex length. Short version: SHA-1 with input bytes.
Does SHA-1 Digest upload my file or text to Tool-You servers?: No. SHA-1 Digest runs in this browser tab. Files stay on the device. Limit note: Empty input fails.
Should I use SHA-256 Digest instead of SHA-1 Digest?: Use SHA-1 Digest when you need SHA-1 with input bytes. Use SHA-256 Digest when you need SHA-256 with input bytes. They share a category (Crypto) but not the same job.
What are the limits of SHA-1 Digest?: Empty input fails. Also: SHA-1 hex; also input bytes and hex length.