Items to check first
- Check whether the tool's supported format matches the actual file format.
- Make sure the file was not merely renamed with a different extension.
- See if you can open the same file in another application.
- Update your browser to the latest version and reload the page.
- Try the same operation with a smaller test file.
If Processing Stops with a Large File
In-browser processing keeps the original file, intermediate data, and converted output in memory. Even when no file-size limit is shown, available device memory and total image pixel count can limit what the browser can process.
- Close unnecessary tabs and applications
- Process fewer files at a time.
- Reduce image dimensions or shorten audio duration before trying again.
If saving does not start
Check browser restrictions on multiple downloads and pop-ups, along with permission to write to the selected destination. Downloads may be restricted by organizational policies on managed work or school devices.
Specific example: When video conversion stops midway
Symptoms such as "Unable to load file," "Conversion does not proceed from 0%," and "Browser does not respond" are caused by format incompatibility, internal codec, free memory, or processing time. The cause cannot be determined by the extension alone.
- Try the same output format with a small video of a few seconds to see if the feature works.
- Play the original file in a regular video player to check for corruption and audio tracks.
- Lower the resolution, time, frame rate, and concurrency and try again.
- Restart your browser and close unnecessary tabs and apps to free up memory.
Before attaching sensitive files to inquiries, create a small test that can reproduce the same symptoms.
When reporting a problem
Remove confidential information, then include the browser, operating system, file format, steps, and displayed error. Reproducible test data that does not require the original file can make troubleshooting easier.
Frequently asked questions
- Why can't I handle large files even though there is no file size limit?
- The browser may simultaneously hold the original file, analysis data, conversion process, and output results in memory. The practical upper limit changes depending on the device environment.
- If I change the extension, can I read it as a supported format?
- No. A file extension is only part of the name; you must convert the underlying image, video, audio, or data format.