HashyTools is a collection of browser tools for developers who need to inspect data, reproduce cryptographic results, and check small examples without uploading their working inputs.
The main workflow connects AES-GCM encryption, a payload inspector, fixed test vectors, and a working browser, Node.js and Python example. Hashing, Base64 and JWT tools support related debugging tasks.
Examples state their input, expected output and limits. Random values such as salts, IVs, UUIDs and passwords change on every run; deterministic test vectors make cross-runtime comparison possible.
For the AES guide, automated checks encrypt in a browser and decrypt in Node.js and Python. They also test altered ciphertext, tags, passwords and AAD. Other checks cover hashing, JWT signatures, XML and page navigation. Passing these checks is not an independent security audit.
The AES JSON envelope is a HashyTools format built on standard primitives. It is not a universal format accepted by every AES tool. The guide specifies its exact parameters and links to the underlying standards.
Text, file and cryptography transformations run in your browser. IP lookup is an exception: it contacts external providers only after you start a disclosed lookup. Bidvertiser advertising uses regional privacy controls and an isolated frame. Analytics is disabled. Read the privacy policy for details.
A browser tool cannot establish that your device is trustworthy, manage production keys, validate application permissions, or replace a review of your security design. Use public test data when following examples.
All tools remain available when you turn ads off. Supporting HashyTools is optional and does not unlock features or change your privacy choices.
You can help by sharing a useful tool with a colleague or reporting a problem with a harmless, reproducible example.
For a reproducible tool issue, email contact@hashytools.com with the page URL, browser, harmless sample input, expected result and actual result. Do not include passwords, tokens, personal data or confidential files.
For privacy or security concerns, use the same contact: contact@hashytools.com. Do not send live credentials.
Content and tool-behavior review: September 21, 2026.