How it works
How to use the CRC-16 Hash Generator
Paste or open your input
Type, paste or drop a file into the left editor — or press Sample to try it.
Adjust the options
Choose the input encoding (text, hex or Base64), the output format, and whether to hash each line separately.
Copy or download the result
Copy the output or download it as a file.
About the CRC-16 Hash Generator
CRC-16 is a 16-bit cyclic redundancy check for detecting transmission errors in protocols such as Modbus, XMODEM and X.25. Choose the variant your protocol uses — they differ in polynomial, initial value and bit order.
Built for developers
Why developers use it
Private by design
Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.
Instant results
Output updates as you type, with precise error locations when something is wrong.
Works offline
Once loaded, the tool keeps working without a connection. Install it as an app if you like.
Free, no sign-up
No accounts, no limits, no watermarks.
FAQ
Frequently asked questions
Can a hash be reversed to get the original text?
No. Hash functions are one-way: the only way to “reverse” one is to guess inputs until one matches, which is why short or common inputs can be looked up in precomputed tables. Never use a plain hash to store passwords — use bcrypt, scrypt or Argon2.
Why does the same input always give the same hash?
Hash functions are deterministic. Changing a single character produces a completely different digest (the avalanche effect), which makes hashes ideal for checksums, cache keys and integrity checks.
Is my data uploaded anywhere?
No. Everything runs locally in your browser — nothing you type, paste or open is sent to a server, logged or stored. The tool keeps working offline once the page has loaded.
Keep going
Related tools
- CRC-32 Hash GeneratorGenerate CRC-32 hashes from text
- SHA-256 Hash GeneratorGenerate SHA-256 hashes from text
- MD5 Hash GeneratorGenerate MD5 hashes from text
- MD2 Hash GeneratorGenerate MD2 hashes from text
- MD4 Hash GeneratorGenerate MD4 hashes from text
- SHA-1 Hash GeneratorGenerate SHA-1 hashes from text
- JSON Schema GeneratorInfer a JSON Schema from sample JSON
- UUID GeneratorGenerate UUID v4 / v7 in bulk and inspect UUIDs