All Tools Verse
The best free online security tools generate strong passwords, hash and encrypt text, and decode tokens, all in your browser. Because everything runs client-side on All Tools Verse, the password or secret you work with never leaves your device, which is exactly what you want for sensitive values. This guide picks the best free tool for each task, and notes where a password manager or a library is the better choice.
In this guide
Best security tools at a glance
Pick the task, then open the tool. Each is free, needs no account, and runs in your browser.
| Task | Best free tool | Good for |
|---|---|---|
| Strong password | Password Generator | New accounts and resets |
| Check password strength | Password Strength Checker | Testing a password |
| SHA hash | SHA Hash Generator | Checksums and fingerprints |
| Password hash | Bcrypt Generator | Storing hashed passwords |
| Encrypt text | AES-256 Text Encryptor | Protecting a note with a key |
| Decode a JWT | JWT Decoder | Reading token claims |
| Random UUID | Random UUID | Unique IDs |
Generate and check passwords
To create a strong password, Password Generator builds a random one with the length and character types you choose, and Generate Random Password is a quick alternative. To test one you already have, Password Strength Checker rates it and shows what makes it weak. Generating a password is only half the job, so keep it in a password manager rather than a note, as covered in the alternatives below.
Hash text
Hashing turns text into a fixed fingerprint that cannot be reversed, used for checksums and storing passwords safely. SHA Hash Generator produces SHA-1, SHA-256, and SHA-512 digests for verifying files and data. For passwords specifically, Bcrypt Generator creates and verifies a slow bcrypt hash, and PBKDF2 Hash Generator derives a key the same deliberate way.
Encrypt and decrypt text
Unlike hashing, encryption is two way: with the key you can get the original back. AES-256 Text Encryptor locks a message with a password using strong AES, and the Text Encryption Tool offers a simple way to scramble and unscramble a note. Because the work happens in your browser, the plain text and the key never reach a server.
JWT and tokens
JSON Web Tokens carry login claims between services. JWT Decoder reads the header and payload so you can see what a token contains, and JWT Generator builds one for testing. For unique identifiers, Random UUID produces standard UUIDs, and Base64 Encoder and Decoder handles the encoding tokens often use.
Server and config
For web servers, Htpasswd Generator creates the user and hashed password lines that Apache basic authentication expects, so you can protect a directory without hand writing the file.
How to choose the right tool
Match the tool to the goal. Need a new password, generate one and save it in a manager. Need to verify a file or store a password in a database, hash it. Need to protect a note you will read later, encrypt it with a key you keep safe. Need to inspect a login token, decode the JWT. Each is a single focused tool, and none of them sends your data anywhere.
Trusted alternatives
For actually storing passwords, a real password manager such as Bitwarden, 1Password, or the open source KeePass is the right home, not a text file. For hashing and encryption at the command line, OpenSSL is the standard free tool, and jwt.io is a popular JWT inspector. For a one off password, hash, or token check, a focused browser tool is faster.
Popular free tools in this guide
Frequently asked questions
How do I generate a strong password?
Use Password Generator, set a length of at least sixteen characters with mixed types, and save the result in a password manager. It runs in your browser, so the password is never sent anywhere.
What is the difference between hashing and encryption?
Hashing is one way and cannot be reversed, which suits checksums and stored passwords. Encryption is two way, so with the key you can recover the original text.
How do I create a SHA-256 hash?
Paste your text into SHA Hash Generator and choose SHA-256. It returns the digest instantly in your browser, with nothing uploaded.
How do I decode a JWT?
Open JWT Decoder and paste the token to read its header and payload. Decoding shows the claims but does not verify the signature, which your server still must do.
Are these security tools safe to use?
They run entirely in your browser, so passwords, keys, and tokens never leave your device. For real secrets, still prefer a password manager over storing them in plain text.
Should I store my passwords in these tools?
No. Use these to generate and check, then store the password in a dedicated password manager like Bitwarden, 1Password, or KeePass.
This guide is part of our roundup of the best free online tools.