What changes besides file size?
Pixel dimensions stay unchanged. Canvas re-encoding does not copy common metadata such as EXIF; transparent pixels become white only when JPEG is selected. Animated sources are rejected to prevent silent frame loss.
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Image
Private JPEG, PNG & WebP Image Compressor
Compress a still JPEG, PNG, or WebP locally into JPEG or WebP, compare exact byte sizes, and get a clear warning when re-encoding makes the result larger.
Three simple steps
How to use Private JPEG, PNG & WebP Image Compressor
- 01
Choose a structurally valid still JPEG, PNG, or WebP.
- 02
Select JPEG or WebP and adjust the browser encoder quality hint.
- 03
Compare exact sizes and visual quality before downloading the current result.
Privacy first
Tool data and site requests stay separate
Tool input and results are processed in temporary state for the current page. The TabPebble application does not send them to a server, write them to a database, or create processing history. Pages and code still load through ordinary network requests. Your browser may restore a tab, while downloads and clipboard copies remain on the device until you remove or replace them.
- No tool-task upload
- No account
- No processing history
FAQ
Frequently asked questions
Is this tool free?
Yes. Core tools are free to use and do not require an account.
Does tool input go to a server?
No. The TabPebble application performs the tool task in your browser and does not put input into site requests; ordinary page and code requests still reach the hosting service.