The Locolory toolkit / Developer Toolkit
Encode and decode text, images, and files to Base64 locally in your browser.
What is Base64? Base64 represents binary bytes using a restricted text alphabet so files and UTF-8 data can travel through text-oriented formats.
No Locolory upload or conversion API call. Selected content remains in browser memory, subject to the security of your device and extensions.
Raw Base64 contains only the encoded payload. A Data URI adds a media type and encoding marker so browsers can interpret it.
Large Data URIs increase HTML and CSS size and are often worse than cached files for production delivery.
This tool limits selected and decoded data to 20 MB. Only common passive raster images receive an inline thumbnail; SVG and HTML are not actively previewed.
Verify the expected media type and source before opening reconstructed files.
Your input shapes the next update
A short note opens in your email app, ready to send to hello@locolory.store.
No. Base64 is reversible binary-to-text encoding, not encryption or access control. Anyone with the encoded value can decode it.
Base64 stores each 3 input bytes as 4 text characters, plus padding when needed. Exact encoded length is 4 × ceil(bytes ÷ 3), approaching roughly 33% overhead for larger files.
No conversion request is sent to Locolory. Browser file, text and download APIs process the selected data locally. Device, extension, clipboard and screenshot risks still apply.