Does Image Compressor upload my image?
Image Compressor reads the selected input into browser memory and performs its documented operation on this device. It does not submit the source file to ImgNimble while using this browser-first workspace.
Optimize · Browser-first processing
Compress Images Privately in Your Browser
Choose an output format and quality, then compare the re-encoded result with the original before downloading it.
Processed on this deviceFREE tier
Image CompressorProcessed on this device
or drop files here
Selected files stay in this browser tab.
Preview and result
Local browser processingSelect a supported file or enter the requested values, then run the tool.
This browser tool does not upload the selected source to ImgNimble. Closing or refreshing clears the selected files and generated result from the page.
Common questions
How this tool behaves
What does Image Compressor create?
A new JPEG, PNG or WebP file plus measured dimensions, byte size and percentage saved.
What limitation should I check before using Image Compressor?
Browser encoders vary by format. PNG compression removes metadata but is not a substitute for specialist server-side optimizers on every image.
What inputs work best with Image Compressor?
Image Compressor validates the selected file before processing. Use JPG, JPEG, PNG, WEBP, GIF, HEIC, HEIF, SVG within the 40 MB per-file limit. Keep an untouched original for comparison.
What happens to my file after I finish with Image Compressor?
The Image Compressor Online workflow runs in browser memory. ImgNimble does not receive the source file for this local operation; refreshing or closing the page clears the selected input and generated in-page result.
Practical checks
Before you use the output
A practical production task
Choose an output format and quality, then compare the re-encoded result with the original before downloading it.
Verify before replacing the original
Keep the source, download the Image Compressor result as a new file, and verify dimensions, transparency, colour, metadata and visual detail before replacing any production asset.