TinyTools

Online Encoding & Security Tools

Fast, client-side cryptographic hashing, Base64 conversion, and unique identifier generation running entirely in your browser without transmitting sensitive tokens or payload data.

Security Utilities

3 Available Tools

Base64 Encoder & Decoder

Encode text to Base64 or decode Base64 back to readable text online. Supports UTF-8, Unicode and developer-friendly Base64 conversion directly in your browser.

Open Utility

Hash Generator

Generate cryptographic checksum hashes including MD5, SHA-1, SHA-256, and SHA-512 instantly in your browser.

Open Utility

UUID Generator

Generate single or bulk cryptographically secure UUID v4 strings for database keys and APIs.

Open Utility

Client-Side Cryptography & Data Privacy

Pasting confidential secrets, hashes, or encoded tokens into third-party cloud converters presents serious security risks. TinyTools is engineered to run all cryptographic hashing, UUID generation, and Base64 conversion 100% locally in your web browser memory.

No Remote Servers

All SHA-256, MD5, and Base64 computations execute entirely within your client browser using native JavaScript APIs. Zero network traffic is generated.

Hardware Accelerated

Uses the browser's native SubtleCrypto engine for cryptographic hashing, delivering sub-millisecond execution for large strings and payloads.

RFC Standards Compliant

Generates RFC 4122 compliant UUID v4 identifiers and standard RFC 4648 Base64 and Base64URL string encodings.

Frequently Asked Questions

Are my strings, passwords, or tokens sent to any server?

No. All hashing, Base64 conversion, and UUID generation executes 100% locally in your web browser. No payload data is ever logged, cached, or transmitted across the network.

What is the difference between Base64 and Base64URL?

Standard Base64 uses '+' and '/' characters with '=' padding, which require percent-encoding in URLs. Base64URL replaces '+' with '-' and '/' with '_', making the string URL-safe and query-parameter friendly.

Can cryptographic hashes like SHA-256 or MD5 be reversed?

Cryptographic hashes are one-way mathematical functions designed to be irreversible. They are used for data integrity verification, password hashing, and digital signatures.