Many online image converters require users to upload their files to a remote server before processing.
For ordinary images this may be acceptable, but for personal photos, screenshots and documents, privacy becomes an important concern.
I built a lightweight online image converter that processes images directly in the browser.
It currently supports:
- JPG
- PNG
- WebP
- HEIC
- GIF
- SVG
- BMP
- TIFF
Why browser-based processing?
The main goal was to make image conversion simple, fast and privacy-friendly.
Because the conversion happens locally:
- Images are not uploaded to a server
- Users do not need to create an account
- There is no installation process
- Network upload time is avoided
- Private files remain on the user’s device
The basic workflow is simple:
- Select an image
- Choose an output format
- Convert the file
- Download the result
Challenges
Browser-based image conversion still has some limitations.
Different browsers support image formats differently, especially formats such as HEIC and TIFF. Large images may also consume more device memory during processing.
Some format features may not be preserved after conversion. For example, transparency may be lost when converting to JPG, and animated images may become static depending on the selected output format.
These limitations need to be handled through clear prompts and error messages.
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