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AiTechWorlds
AiTechWorlds
Encode plain text or URLs to Base64, or decode Base64 strings back — fully client-side.
Drag & drop a file, upload, or paste directly
The Base64 Encoder & Decoder on AiTechWorlds lets you encode any text or binary data to Base64 format or decode a Base64 string back to its original content instantly. Base64 encoding is used everywhere in web development — embedding images in CSS or HTML, encoding binary data in JSON payloads, storing credentials in HTTP headers (Basic Auth), and transmitting data through systems that only handle ASCII text. This tool handles both directions with a single interface: paste text to encode it, or paste a Base64 string to decode it back. It also supports URL-safe Base64 variants. All operations run entirely in your browser — neither your original text nor the encoded output is sent to any server, making this safe for credentials, tokens, or private content. AiTechWorlds offers this as a reliable, instant utility for everyday encoding tasks.
Choose mode
Select Encode to convert text to Base64, or Decode to convert Base64 back to plain text.
Enter your input
Paste the text, JSON, credentials, or any string you want to encode or decode.
Get the result
The encoded or decoded output appears instantly in the output panel.
Choose variant
Select standard Base64 or URL-safe Base64 (replaces + and / with - and _).
Copy the output
Click Copy to use the result in your code, headers, or config files.
100% Private — No Server Required
All processing happens directly in your browser. No data is uploaded, stored, or transmitted to any server.
Last reviewed on June 1, 2026 by the AiTechWorlds Tools Team. All processing runs locally in your browser.
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