Image Compressor — free online tool
Blog authors shrink hero images before WordPress upload; quality and max-edge controls help balance file size and sharpness for JPEG or WebP output.
When to use Image Compressor
Shrink photos for email attachments, WhatsApp status, or CMS upload limits without installing desktop software.
Good for email attachments, CMS uploads, and faster page loads without installing desktop software.
What Image Compressor does not do
Re-encoding cannot recover detail already lost. It is not lossless archival compression or a batch desktop app with profiles.
How to use Image Compressor
- Select a JPEG, PNG, or WebP photo with the Image Compressor file picker.
- Set maximum edge length and quality percentage sliders to match your target size.
- Run compress and compare before/after size in the UI if shown.
- Download the smaller file and keep your original elsewhere until you are satisfied.
Practical tips
- Start at quality 80–85 for web photos; drop further only if the file is still too heavy.
- Resize the dimensions first—an oversized image compresses better once it is the right size.
- Keep the untouched original; re-compressing an already-compressed JPEG adds visible artefacts.
Example
Drop a 4 MB phone JPEG, quality ~80, download a smaller file for a CMS 1 MB limit.
Related tools on Webtoolshop
- Bulk Image Compressor — Same quality settings on many files.
- Image Resizer — Reduce pixel dimensions before compressing.
Limitations
Quality slider re-encodes JPEG/WebP. Already tiny images may grow slightly. Keep originals elsewhere.
Privacy & data
No. The file is read in your browser tab and the result is generated locally. Nothing is sent to Webtoolshop servers for in-browser image or PDF tools.
Frequently asked questions about Image Compressor
What does the Image Compressor not do?
Re-encoding cannot recover detail already lost. It is not lossless archival compression or a batch desktop app with profiles.
Give me a concrete example for the Image Compressor.
Drop a 4 MB phone JPEG, quality ~80, download a smaller file for a CMS 1 MB limit.
Why did the Image Compressor fail or look wrong?
Try a smaller file, fewer pasted characters, or an updated browser. Extensions that block scripts or downloads sometimes interfere—test in a private window if results never appear.
Are my files uploaded when I use the Image Compressor?
No. The file is read in your browser tab and the result is generated locally. Nothing is sent to Webtoolshop servers for in-browser image or PDF tools.
Image Compressor
Resize to a max edge and re-encode as JPEG or WebP — all in your browser.