Image Compressor
/image-compressorCompress images by adjusting JPEG quality with a live slider. See the size reduction before downloading.
Large images are the most common cause of slow websites, bloated emails, and storage overages. This compressor lets you adjust JPEG quality with a live slider and shows the resulting size before you download. Batch mode handles multiple images at once and packages them into a ZIP. Compression runs entirely on your device.
Large hero images are the fastest way to ruin a Core Web Vitals score, because the browser cannot paint above-the-fold content until the image finishes loading. Compressing a photo to a JPEG quality around 75-80 keeps the visual difference subtle while cutting file size dramatically, and a compressed asset makes a real difference to load time on a slower connection. Batch mode lets you process a whole set of product or blog images at once, and compressing locally means you never wait on an upload before the work starts.
Email servers routinely reject or bounce attachments over a few megabytes, and a phone camera photo can exceed that limit on its own. Compress the image until it lands safely under the limit, using the live preview to confirm the quality is acceptable, then attach the smaller file instead of fighting with a compressed archive. This also covers forms and portals that enforce size caps, and attaching multiple photos, where running each through the batch pipeline keeps the total message size sane. Everything stays on your device.
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How to use
How to use Image Compressor
- 1Drop an image onto the upload zone or click to browse for one.
- 2Drag the quality slider and watch the preview update live.
- 3Compare the size before and after compression.
- 4Download the compressed image to your device.
FAQ
Frequently asked questions
Everything you need to know about image compressor.
What quality setting should I use?
70-80% is a good balance for photos. Lower values shrink the file more but introduce visible compression artifacts.
Does compression preserve EXIF data?
No. Re-encoding drops all metadata, which is actually a privacy bonus, but camera info and GPS data are lost in the output.
Can I compress many images at once?
Yes. Batch mode compresses multiple files, shows per-file savings in a table, and offers a ZIP download of everything at once.
Is there a size limit?
Images are downscaled to a maximum dimension of 3000 pixels before compression, keeping very large photos fast to process.
Why is my result sometimes larger than the original?
JPEG re-encoding can grow files that were already well compressed, such as low-quality JPEGs. Check the reported savings before downloading.
Are my images uploaded?
No. Compression runs locally on a canvas element, so your files never leave your device for any step of the process.
Guides
Comparisons
JPEG vs WebP vs AVIF: Which Image Format Should You Use?
Compare file sizes, quality, and browser support for JPEG, WebP, and AVIF to pick the best format for your website.
PNG vs JPEG: When to Use Each Image Format
The classic image format dilemma: transparency and lossless quality vs small file sizes.
WebP vs PNG: Which Format for Web Graphics?
WebP offers PNG-like quality at smaller sizes, but when does PNG still win?
Sorawi Tools vs ConversionTools: Which File Converter Should You Use?
Sorawi Tools is a free browser-based converter that never uploads your files. ConversionTools offers an API and server-side processing with daily limits. See how they compare on privacy, pricing, and file size. Sorawi Tools is our own product — this comparison is transparent about that. Pricing figures for ConversionTools are as of August 2026.
ConversionTools Alternatives: Free & Private File Converters (2026)
ConversionTools is a capable online converter, but its free tier is capped by daily limits and it processes files on a server. These free alternatives convert in your browser with no uploads, no quotas, and no accounts.
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