Image compressor
Reduce an image file size locally by re-encoding it with adjustable quality.
How to use the Image compressor
What does the Image compressor do?
Reduce an image file size locally by re-encoding it with adjustable quality; It applies this page-specific rule: the selected image is decoded and exported as JPEG or WebP at the requested quality.
Which inputs does this tool use?
To reduce an image file size locally by re-encoding it with adjustable quality, enter Choose image, Output format, Quality, Transparency background; keep every value in the same example; where available, choose between PNG, JPEG, WebP to match the required format; select Create file when the values are ready; Start with a familiar case covered by this rule - Re-encoding is lossy for JPEG and WebP; keep the source and inspect fine detail - so the expected result can confirm the settings.
How should the tool result be read?
For a result intended to reduce an image file size locally by re-encoding it with adjustable quality, re-encoding is lossy for JPEG and WebP; keep the source and inspect fine detail; read transparency background together with the original choose image rather than as an isolated answer, and confirm that its units or structure match the intended use.
What rule does Image compressor apply?
When the goal is to reduce an image file size locally by re-encoding it with adjustable quality, re-encoding is lossy for JPEG and WebP; keep the source and inspect fine detail.
What should be checked after using Image compressor?
When using the page to reduce an image file size locally by re-encoding it with adjustable quality, processing uses standard browser image APIs and requires no account.
Limits and accuracy
When using this tool to reduce an image file size locally by re-encoding it with adjustable quality, processing uses standard browser image APIs and requires no account; keep the original file and inspect the downloaded result, since format support, transparency, detail, and file size can vary by browser and settings; keep choose image until the output has been checked in its intended destination.
How it works
The selected image is decoded and exported as JPEG or WebP at the requested quality.
Re-encoding is lossy for JPEG and WebP; keep the source and inspect fine detail.
Processing uses standard browser image APIs and requires no account. Large images can use significant memory, particularly on phones, so keep the original until the download has been checked.
Frequently asked questions
Is the image uploaded?
No. The selected file is decoded and processed locally in this browser tab.
Does conversion improve image quality?
No. A new format can improve compatibility or size, but it cannot recreate detail missing from the source.
Why might a format be unavailable?
Decoding and export support vary by browser. PNG and JPEG are broadly supported; newer or specialist formats may not be.