What Is Base64? History, How It Works & Uses
Learn what Base64 encoding is, where it came from, how the 3-byte-to-4-character process works, and when to use it.
Decode Base64 Blog
Clear guides to Base64 basics, image compression, padding errors, JWT Base64URL, data URLs, privacy, and practical workflows.
Privacy-first Base64 conversion
Why Decode Base64 keeps text and small files in the browser instead of sending them to a server.
Local history without an account
How localStorage makes repeated Base64 work faster while keeping the record under the user’s control.
Small workflow features that make Base64 work faster
The quiet UI details behind hover-to-copy, share links, language detection, keyboard flow, and mobile layout.
Base64 Padding Errors: Why They Happen and How to Fix Them
A practical guide to the equals signs at the end of Base64 strings, incorrect padding errors, and safe repair rules.
Base64URL and JWT: Decode Payloads Without Trusting Them
JWTs use Base64URL, not plain Base64. Learn what you can read, what you must verify, and where padding fits.
Base64 Images and Data URLs: When Inline Files Make Sense
Data URLs can carry small Base64 images in HTML or CSS, but they also add size and caching tradeoffs.
How to Compress a Base64 Image (Why Gzip Usually Fails)
Learn how to reduce a Base64 image by optimizing its decoded pixels, why Gzip is not a drop-in data URL, and how to target 100 KB in browser JavaScript.