Free Online Developer Tools – Format, Validate & Convert

Small utilities for the moments you need to read a minified API response, validate a config file or tidy up data before pasting it into a ticket.

Because these tools run client-side, you can paste tokens, internal payloads and customer data without it being logged on someone else's server.

Base64 Encode & Decode
Encode text to Base64 or decode a Base64 string back into readable text. A URL-safe option and full Unicode support are built in, and decoded images, PDFs or ZIPs can be saved as files.
Hash Generator
This hash generator calculates MD5, SHA-1, SHA-256, SHA-384 and SHA-512 together from text or any file. Paste a published checksum to see which algorithm matches, with nothing leaving your device.