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.

Image Compressor workspace with local image preview
Image CompressorProcessed on this device
or drop files here Selected files stay in this browser tab.

Preview and result

Local browser processing

Select a supported file or enter the requested values, then run the tool.


  




Closing or refreshing this page clears the selected files and generated result. Downloaded files are created as new copies and never overwrite the source.


Common questions
How this tool behaves
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.
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.
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.


Continue the workflow
Related image tools
Image Resizer
Resize images to exact pixels or a percentage while optionally preserving the original aspect ratio.
Bulk WebP Converter
Convert a group of JPG or PNG files to WebP locally and download the results together as a ZIP archive.
AVIF Encoder
Encode an image to AVIF when the current browser exposes a working AVIF canvas encoder.