Email Lab

Run encodes, decode checks, random bulk batches, file digests, or HMAC-backed tokens from a single cockpit.

Every tool keeps the controls lean, copy-ready, and keyed to the algorithm you need.

live random

Toggle the action, pick a variant, and the form adapts for files, checksums, or HMAC signing.

Action
Use this key along with the variant above when hashing or verifying HMAC tags.
Notice!
  • Use the HMAC key panel with hex/base64 templates to hash or verify secrets.
  • The random builder keeps bulk, length, and seed controls synced for repeatable batches.
  • Files stay local—upload only to grab the file's checksum and verify it in-browser.
    • Random builder

    Bulk strings refresh instantly; adjust the length and seed to lock a repeatable set.