Base64 Encode/Decode
Encode or decode Base64 strings
About Base64 Encode/Decode
Base64 appears everywhere in web development: data URLs for embedded images, HTTP Basic auth headers, JWT segments, email attachments and config files. This tool encodes text to Base64 and decodes it back instantly — with full Unicode support so emoji and non-English text survive the round trip.
Because encoding runs locally, it is safe for sensitive strings like API credentials in development. The tool also handles URL-safe Base64 variants used by tokens and query strings.
Part of Toolverse's Developer Tools collection, this page also connects you to related tools so you can finish the whole job without hunting across the internet. Bookmark /tool/base64 and your next base64 encode/decode task takes ten seconds.
Part of Toolverse's Developer Tools collection, this page also connects you to related tools so you can finish the whole job without hunting across the internet. Bookmark /tool/base64 and your next base64 encode/decode task takes ten seconds.
Key Features
- check_circleEncode or decode Base64 strings — in seconds, right in your browser
- check_circleNo signup, no installation, no watermark
- check_circle100% private — files and data processed locally, never uploaded
- check_circleWorks on desktop and mobile browsers
- check_circleFree and unlimited — ad-supported, never paywalled
- check_circleWorks offline once the page has loaded
How to Use
- 1
Open the tool
Load this page — Base64 Encode/Decode starts instantly, no signup or download needed.
- 2
Provide your input
Enter your input — text, numbers or options — depending on the task.
- 3
Get the result
The tool processes instantly and shows the output, with options to adjust as needed.
- 4
Download or copy
Save the result to your device or copy it to the clipboard. Done — in under a minute.
Frequently Asked Questions
Is Base64 encryption?
No — it is an encoding, not encryption. Anyone can decode Base64 without a key. Never use it to 'hide' secrets; use proper encryption.
Why does Base64 make data bigger?
It encodes every 3 bytes into 4 characters, adding roughly 33% size overhead. That is the trade-off for binary-safe transmission over text channels.
What is URL-safe Base64?
A variant that replaces '+' and '/' with '-' and '_' so the output can sit inside URLs and filenames without escaping.
Does it support emoji and Hindi/Devanagari text?
Yes — the tool encodes UTF-8 correctly, so any language and emoji round-trip safely.