Hash Generator
MD5, SHA-1, SHA-256, SHA-512 from text or files
What is Hash Generator?
Hash Generator is a free developer utility from Farvixo that lets you MD5, SHA-1, SHA-256, SHA-512 from text or files. Your input is processed locally in the browser — nothing is sent to a server, which matters when the payload is a token, a config file or production data. Free, unlimited, no sign-up.
How to use Hash Generator
Paste your snippet into Hash Generator. It stays on your device, which matters when you are handling tokens, config or production data.
Hash Generator processes the input instantly and points at the exact line when something is malformed, so you can fix it rather than hunt for it.
Copy the result to your clipboard or download it. Free, unlimited and no sign-up.
Frequently Asked Questions
Which hash algorithm should I use?
SHA-256 for anything security-related. MD5 and SHA-1 remain useful for detecting accidental file corruption, but both are cryptographically broken — deliberate collisions are practical — so neither should be used to prove a file has not been tampered with.
Can I hash a file as well as text?
Yes. The file is read locally in your browser, so even large archives can be checked without uploading them. Big files take time because every byte has to be read on your device.
Why does the same text give a different hash elsewhere?
Almost always a trailing newline or a different character encoding. Hash functions operate on exact bytes, so a difference you cannot see produces a completely different result. Check for invisible whitespace first.
My checksum does not match the publisher's. What now?
First confirm the algorithm matches — a SHA-256 value will never equal a published MD5. If it does match, re-download the file, since a truncated download changes the hash. If it still differs after a clean download, do not run the file.
Is my data sent to a server?
No. Hashing runs entirely in your browser and nothing is transmitted, stored or logged — which is the only acceptable design for a tool people use on passwords, keys and private files.
Can a hash be reversed?
Not by design. Hashing is one-way, so the original cannot be recovered from the digest. Short or common inputs can still be found by looking them up in precomputed tables, which is why a raw hash of a password is not adequate protection.
What you can use Hash Generator for
- Inspecting or reformatting an API payload while debugging
- Decoding a token or encoded value without pasting it into an unknown website
- Generating test data or identifiers during development
- Validating a config file before it is committed or deployed
Hash Generator at a glance
- Tool
- Hash Generator — Developer Tools
- Purpose
- MD5, SHA-1, SHA-256, SHA-512 from text or files
- Input
- Text or values you enter directly
- Output
- Processed output you can copy to the clipboard or download
- Processing
- In your browser — files are never uploaded to a server
- Price
- Free, unlimited, no account required
- Limitations
- Bounded by your device's memory and CPU rather than a server quota
Tips for better results
- Because processing is local, it is safe to paste real credentials or production payloads here — nothing is transmitted or logged.
- When parsing fails, the reported line and column point at the first invalid token, which is usually just after the real mistake.
- Bookmark the tool page directly; it loads without an account and works offline once cached.
Common problems and how to fix them
Parsing fails on valid-looking input
Usually a trailing comma, a smart quote pasted from a document, or an unescaped backslash. Check the reported position first.
Output has unexpected whitespace or line endings
The source used CRLF line endings or a non-breaking space. Normalise the input before processing.
Non-English characters come out wrong
The input was not UTF-8. Re-save the source as UTF-8 and paste it again.
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