Image Compressor
Compress JPG, PNG or WebP images, choose output format and quality, and optionally resize large images.
Turn this result into a calculation record
Carry the tool context into the PROFENG calculation-check and record workspace without implying certification or engineering approval.
Formula source and acknowledgement
Source being confirmed. PROFENG has not yet approved a published source for this exact calculator implementation, so no candidate book, paper or standard title is displayed here.
Credit for any underlying published method belongs to its original author(s) or standards body. PROFENG presents its own implementation and wording and does not imply endorsement or affiliation.
Read the PROFENG methodology for formula sourcing and automated checks →
Why use this image compressor?
Use the image compressor to reduce photo and graphic file sizes before emailing, uploading to a website or sharing online. You can choose JPEG, WebP or PNG output, control quality and limit oversized images to a practical width.
Example
A 5 MB phone photo can be resized to 1920 px wide and exported as WebP or JPEG, often reducing transfer size substantially while keeping useful visual quality.
Important note
Compression is lossy for JPEG and WebP. PNG is better for graphics that need transparency. Always inspect the downloaded image before deleting the original.
How to use it
Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is Image Compressor free?
Yes. The core tool is free to use without creating an account.
Do I need an account to use Image Compressor?
No. You can use the core Toolbox workflow without signing up.
Does Image Compressor work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.
QA, changelog and corrections
Last QA update: 30 September 2026.
This page is covered by publication and metadata QA only unless a tool-specific automated verification status is displayed above. No named-expert review is claimed.
Changelog
30 September 2026 – source/indexation status, metadata and correction pathway reviewed. Engineering tools display the automated verification label only when they are inside the passing Part 3 verification scope.