# Argon2 Hash Generator

> Use this Argon2 hash generator to create a Argon2 password hash. Hash text or encoded bytes and copy the complete salted result for verification.

This **Argon2 hash generator** creates a salted password hash from text or encoded bytes. Use it to prepare development fixtures and understand the encoded value needed for verification. Password hashing is one-way; it does not encrypt a password for later decryption.

## Overview & Metadata

- **Canonical URL:** https://million.tools/argon2/
- **Markdown Copy (.md.txt):** https://million.tools/argon2.md.txt
- **Plain Text Copy (.txt):** https://million.tools/argon2.txt
- **SEO Title:** Argon2 Hash Generator Online | Password Hashing
- **Alternative Names:** Argon2id Password Hasher, Generate Argon2 Hash, Argon2 password hasher, Argon2 password hash generator, Online Argon2 generator, Argon2 hashing tool
- **Category:** [Hash](https://million.tools/hash/)
- **Tags:** [#Argon2](https://million.tools/tag/argon2/), [#KDF](https://million.tools/tag/kdf/)
- **Application Category:** `DeveloperApplication`
- **Platform:** Web (All modern desktop and mobile browsers, requires JavaScript)
- **Price:** Free ($0.00 USD, no registration or sign-up required)
- **Live Calculation:** Supported (`Auto / Live` toggle enabled by default)
- **Usage Statistics:** 2 uses · 7 views
- **Published:** 2026-11-02
- **Last Updated:** 2026-11-02
- **Author:** Egor Volchenko (Developer & Author)

## Key Features

- Generate Argon2id encoded password hashes
- Use fixed memory, iteration, and parallelism settings
- Generate a random salt for each hash
- Accept text or encoded input bytes
- Copy the complete hash and clear text

## Parameters & Interface Controls

### Input Parameters & Options
- `input_text`: Input text.
- `hmac_key`: Salt (Optional / Auto-generated).
- `kdf_iterations`: Number. Iterations / Work Factor
- `kdf_length`: Number. Key Length (Bytes)
- `input_encoding`: `Hex` | `Hex (Ignore Non-Hex Characters)` | `Base64` | `UTF-8` | `UTF-16LE` | `UTF-16BE` | `Windows-1251 (Cyrillic)` | `Windows-1252 (Latin 1)` | ... (42 options)
- `output_format`: `Hex (lower)` | `Hex (UPPER)` | `Base64`

### Output Fields & Metrics
- `result`: Argon2 Hash Result.

- **Controls:** `Derive Key`, `Clear`, `Copy`, `Fill test data`, `Auto / Live`

## Interactive Example (Test Vector)

**Settings:**
- Input Encoding: `UTF-8`
- Output Format: `Hex (lower)`

**Input text:**
```text
MilliOn.t00ls
```

**Argon2 Hash Result:**
```text
$argon2id$v=19$m=65536,t=4,p=1$P3Bhz4vA7bnYyVixrwOsRQ$wN4G+Yg8iwz1fpXmNdfM7+TWNEGR36uhF6XysSUU+vw
```

## How to use Argon2 Hash Generator

Use the steps below to create a Argon2 password hash.

### Create a Argon2 password hash

1. **Enter a test password:** Type or paste a non-sensitive test password into Input text.
2. **Choose the input representation:** Use Input Encoding: to describe the password: UTF-8 for normal text, or Hex or Base64 for encoded bytes.
3. **Process the input:** Keep Auto / Live on to update the result as you edit. To work manually, turn Auto / Live off and click Run.
4. **Read the complete hash:** Read Argon2 Hash Result and retain the complete encoded string.
5. **Copy or clear:** Click Copy to copy the result. Use Clear where shown, or a field's clear control, to clear the text.

For a reproducible verification example, the test password `million-test` matches `$argon2id$v=19$m=65536,t=4,p=1$WOTd/tGxakQ5SF4t61ZueA$/5pJ3KHg0yZxoK9yPKNLkUDCOlLu4Q1cyR2VDypU+Ls`. A new run uses a fresh random salt when none is supplied, so its full output will differ.

### Read the encoded result

The generator uses Argon2id version 19 with `m=65536` KiB, `t=4`, and `p=1`. It generates a random 16-byte salt and a 32-byte hash. These settings are fixed in this form; the output is a complete encoded hash.

### Retain the verification parameters

The encoded string records the variant, version, memory cost, iterations, parallelism, salt, and hash. Store that whole string for later verification. The output-format radio buttons do not convert it to a raw digest.

## Frequently asked questions

### Which Argon2 variant does this generator use?
It generates Argon2id hashes. This interface has no selector for Argon2i or Argon2d.

### Can I change memory, iterations, or parallelism?
No. The current values are 65536 KiB of memory, four iterations, and parallelism one. The form does not expose parameter controls.

### Why does hashing the same password produce different strings?
A new random salt is generated for each run. The salt is stored in the encoded result, allowing a verifier to check the password later.

### Should I store the whole Argon2 string?
Yes. Keep the variant, version, parameters, salt, and digest together. Removing parts of the encoded string can prevent verification.

### Does the output-format selector change the Argon2 hash?
No. The result remains a complete encoded hash string. Hex and Base64 radio choices do not provide a raw-hash mode on this page.

### Is the text processed entirely in my browser?
No. The current form sends its input to the calculation API. Use non-sensitive sample data when testing.

## Related Tools

- [SHA-224 Hash Generator](https://million.tools/sha224/): Generate a SHA-224 digest from text or encoded bytes. Choose hex or Base64 output, or test HMAC-SHA224 with a key.
- [Keccak-256 Hash Generator](https://million.tools/keccak-256/): Generate Keccak-256 hashes from text with UTF-8, Hex, or Base64 input. View live results, use HMAC mode, and copy Hex or Base64 output.
- [CRC-16 Calculator](https://million.tools/crc16/): Calculate 16-bit CRC checksums from text with CRC-16/ARC as the default. Choose input encoding, view hex or Base64 results, and copy the checksum.
- [CRC32 Calculator](https://million.tools/crc32-calculator/): Calculate CRC-32 checksums for text with selectable input encoding, live updates, and lowercase hex, uppercase hex, or Base64 output.
- [SHA1 Hash Generator](https://million.tools/sha1/): Generate SHA-1 hashes from text or encoded data. Choose Hex or Base64 output, use live updates, or calculate HMAC-SHA1 values.

## About the Author

**Egor Volchenko** — *Developer & Author*

Hi! I’m a WordPress developer with over 10 years of experience. I love Tailwind CSS, clean code, and intuitive interfaces. I’m currently working on million.tools — a service with convenient online tools for everyday tasks. I’m building it from scratch with great attention to detail and user experience.

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