Security Tools
Check password strength, generate secure passwords, hash values, and decode JWT tokens — free browser-side security tools with no data transmission.
Best tools to start with
Curated entry points for the strongest security workflows.
All Security Tools
1 free tool — no sign-up required.
Why Security Tools Matter
Security tools are most valuable when they help you inspect, generate, or verify sensitive values without turning a quick task into a full backend project. Generating a strong password, checking whether an existing one is weak, computing a checksum, or decoding a JWT token are all things that need to happen quickly and — ideally — without sending the values to a remote server.
The strongest pages in this category are Password Generator, Password Strength Checker, Hash Generator, JWT Decoder, SHA Generator, and MD5 Generator. Each one handles a distinct security task: credential creation, credential review, one-way hashing, and auth token inspection. All of them run client-side by default.
This category overlaps with the developer category for auth debugging and token inspection tasks, with the generator category for password and hash generation, and with the converter category for Base64 and encoded-value work. Security workflows do not stay neatly inside one category — a single debugging session might touch all four.
Start with Password Generator and Password Strength Checker if everyday credential management is the priority, or Hash Generator and JWT Decoder if the focus is backend and auth debugging. Both entry paths link naturally into the surrounding tools.
Security Tool Collections
Grouped workflows that connect security tools to adjacent tasks.
Security & Privacy Kit
Password generators, strength checkers, hash functions, and token decoders — all running entirely in your browser, never touching a server.
API & Backend Pack
The developer tools you open every day: JWT decoder, JSON formatter, HTTP status codes, cron builder, SQL formatter, and more.
Security FAQ
Common questions about security tools and how to use them.
Which security tools are most useful for everyday work?
Password Generator, Password Strength Checker, Hash Generator, and JWT Decoder solve the most common quick security tasks for developers, admins, and general users.
Are hashing and encoding the same thing?
No. Hashing is designed to be one-way, while encoding is reversible. That distinction matters when you are working with passwords, checksums, tokens, or transport-safe formats.
Why are developer tools linked from the security category?
Because many security tasks are part of application debugging. Token inspection, checksum generation, and auth troubleshooting often happen in the same session as general developer work.