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Cryptography and Security Tools

This topic groups browser-first tools for hashing, JWT inspection, TOTP generation, RSA testing and lightweight crypto workflows.

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Recommended tools

Recommended tools for Cryptography and Security Tools

SHA Hash Generator

Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes for text or small files.

Open tool → JWT Decoder

Decode JWT header and payload locally, inspect claims, expiry times and raw Base64URL segments.

Open tool → TOTP Generator

Generate current TOTP codes from a secret or otpauth URI with configurable digits, period and algorithm.

Open tool → AES / DES Encryption Tool

Encrypt or decrypt short text with AES, DES or 3DES in the browser, with selectable block mode, padding, IV and output format.

Open tool → RSA Key Tool

Generate browser-side RSA key pairs and use them for short text encryption, decryption, signing and verification.

Open tool → Password Generator

Generate strong random passwords with length, character sets, memorable mode and ambiguity filters.

Open tool →
Keep going after the result

Open a tool, get the result, then continue into the next step without starting over.

Open the first tool Browse all tools
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Code and Data Formatting Tools

Format JSON, XML, YAML, TOML, encode text, inspect headers, and validate technical data quickly.

Browse tools → ID, Password and Hash Tools

Generate UUIDs, passwords, TOTP codes, hashes, and quick security check values.

Browse tools → Time, Date and Schedule Tools

Convert timestamps, time zones, cron expressions, and time-based codes for real work.

Browse tools → Schedule and Time Zone Tools

Prepare timestamps, time zones, cron schedules, and time-based codes for launches, logs, and meetings.

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Related how-to guides

Read the steps first if you need context

RSA Public and Private Key Basics OnlineHow to Inspect JWT Payloads Without Sending Tokens AwayUse SHA-256 Online for Quick Text ChecksBrowser Encryption Basics with AES, DES and RSA
FAQ

Frequently asked questions

Who is Cryptography and Security Tools for?

Check JWT claims and token timing quickly

Which tool should I start with?

Start with SHA Hash Generator, then continue through the recommended flow below.

What if this scenario is close but not exact?

Continue into a nearby tool collection, category page, or how-to guide from the sidebar.

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