Security &amp; Privacy

HTML Encode

Encode HTML-sensitive characters into entities for safe display.

HTML

HTML Decode

Decode HTML entities back into readable markup characters.

JSON

JWT Decode

Decode JWT header and payload locally without verifying or uploading tokens.

PWD

Password Generator

Generate strong random passwords locally with browser crypto for accounts, test users and vaults.

SHA-256 Checksum Generator

Create SHA-256 hashes for text verification, checksums and integrity comparisons in the browser.

Useful Security & Privacy Workflows

8 steps

Developer Debug Kit

Move from a confusing payload or failing request to readable data, decoded claims, safer URLs and a reproducible API check.

3 steps

Decode JWT Safely in Browser

Inspect JWT claims, expiry and URL encoding without sending tokens to a backend.

All Security & Privacy

Search within this category by tool name, slug, keyword, or workflow.

ENTI

HTML Encode

Encode HTML-sensitive characters into entities for safe display.

HTML

HTML Decode

Decode HTML entities back into readable markup characters.

JSON

JWT Decode

Decode JWT header and payload locally without verifying or uploading tokens.

PWD

Password Generator

Generate strong random passwords locally with browser crypto for accounts, test users and vaults.

SHA-256 Checksum Generator

Create SHA-256 hashes for text verification, checksums and integrity comparisons in the browser.

JWT

JWT Encoder

Create an unsigned JWT-style header and payload for demos and documentation only.

TEXT

Binary to Text

Decode binary byte groups into text.

BINA

Text to Binary

Convert text into 8-bit binary groups.

TEXT

Hex to Text

Decode hexadecimal byte values into readable text.

HEX

Text to Hex

Convert text into hexadecimal byte values.

BINA

Decimal to Binary

Convert decimal numbers into binary values.

DECI

Binary to Decimal

Convert binary numbers into decimal values.

DECI

Hex to Decimal

Convert hexadecimal numbers into decimal values.

HEX

Decimal to Hex

Convert decimal numbers into hexadecimal values.

Passphrase Generator

Generate memorable multi-word passphrases for secure logins and recovery workflows.

Password Strength Checker

Check password length, character variety and common weakness signals without sending it anywhere.

Basic Auth Header Generator

Create HTTP Basic Authorization headers from a username and password for API testing.

CORS Header Generator

Generate common CORS response headers for frontend API development and browser debugging.

CSP Header Generator

Generate a starter Content Security Policy header to harden websites and reduce XSS risk.

Fake Email Generator for Testing

Generate safe non-receiving example email addresses for QA, seed data, forms and demos.

Test Card Number Generator

Generate sandbox-only Luhn-valid card numbers for payment form development and QA.

Luhn Validator

Check whether a number passes the Luhn checksum locally without validating a real card account.

Email Alias Ideas Generator

Create practical email alias ideas for testing, support routing and inbox organization.

Disposable Email Safety Checker

Check email syntax and common disposable-domain signals locally for signup QA and moderation notes.