How do I compress an image to 100KB?

Add your image, switch to Target size mode, type 100 into the KB box (or click the 100 KB chip), and click Compress all. The compressor iterates the encoder until the result lands at or under 100 KB when possible. Very large photos may need a lower target or a small maxWidthOrHeight reduction to hit exactly 100 KB.

Is this image compressor free?

Yes. No signup, no watermark, no email wall, and no daily limit. Compress as many images as your browser can hold in memory.

Are my images uploaded to a server?

No. Compression runs entirely in your browser using a Web Worker and the standard Canvas API. Your original images and the compressed versions are never uploaded, stored, or seen by us. You can disconnect from the internet after the page loads and it still works.

Will my image lose quality?

JPG and WebP are lossy formats, so some quality is discarded when you compress. At a quality of 80 to 90 the loss is invisible for most photos. Lower the slider or the KB target only when you need a smaller file and can accept mild softness or block artifacts around edges.

Can I compress a PNG without losing quality?

PNG compression on the web is essentially lossless-friendly, so a PNG can only shrink so far without changing pixels. Icons, screenshots, and flat graphics compress well. Photos saved as PNG usually shrink far more if you convert them to JPG first using our PNG to JPG tool.

Can I compress many images at once?

Yes. Drop a whole folder of images, compress them in one pass with the same setting, and download every result together as a single ZIP archive.

What image formats are supported?

JPG (also known as JPEG), PNG, and WebP. Each file keeps its original format on output, so a JPG stays a JPG, a PNG stays a PNG, and a WebP stays a WebP.

Does it work on Android and iPhone?

Yes. The compressor is a web page, so it runs in any modern browser on Windows, macOS, Chromebook, Linux, Android, iPhone, and iPad. Nothing to install.

How small can I compress an image?

You can target 20 KB, 50 KB, or any other size. The smaller the target, the more visible quality loss. If a photo will not shrink far enough, add a max width or height (for example 1600 or 1200 px) so the compressor can also downscale.

Why is my output slightly larger than the target KB?

The library iterates the encoder to land at or under the target when possible. If the image content resists compression (a busy photo, or a PNG with lots of detail), the closest safe result may sit just above the target. Lower the KB target, or turn on Max width or height, to push it further.

Compress images online, free

Reduce JPG, PNG, and WebP file size right in your browser, no upload.

or drop JPG, PNG, or WebP images here

Your files never leave your device.

Found a bug or need help? Email hello@freepdfhub.in

Compress images online, free

Compress an image to shrink it for email, upload forms, WhatsApp, exam applications, resumes, product listings, or a faster website. This free image compressor reduces JPG, PNG, and WebP file size right inside your browser tab. Pick a quality, or set an exact target like 100KB, 200KB, 50KB, even 20KB, and the compressor iterates the encoder until the file lands at or under your goal when possible.

Everything runs client-side. Your originals and the compressed results never leave your device, so you can reduce photo file size for a passport form, an ID upload, or a private document without handing anything to a stranger's server.

How to compress an image

Open the Compress Image tool, no signup needed.
Drag and drop your JPG, PNG, or WebP images, or click to select them.
Choose Quality mode and move the slider, or choose Target size and enter a size in KB.
Click Compress all, then download each image or grab them as a single ZIP.

Compress an image to a target size (100KB, 200KB, 50KB)

Most online forms cap uploads at a specific size. Job portals want a photo under 200KB. School and government exam forms often ask for a signature or photo under 100KB, sometimes even 50KB or 20KB. Instead of guessing quality numbers, switch to Target size mode, type the exact KB value, and let the compressor iterate for you. The encoder tries progressively stronger settings until the result lands at or under your target when possible.

Preset chips make the common cases one click: 20 KB, 50 KB, 100 KB, 200 KB, and 500 KB. If a photo refuses to shrink enough at high resolution, turn on the optional Max width or height box (try 1600 or 1200 px) so the compressor can also downscale. Downscaling combined with a KB target is the fastest way to compress a large phone photo into a tiny upload without visible ugliness.

Compress JPG, PNG, and WebP

The tool accepts JPG (JPEG), PNG, and WebP, and each file keeps its original format on output. That is important because different formats behave very differently under compression.

Compress JPG. JPG is lossy and made for photos, so it can shrink dramatically with almost no visible loss at quality 80 to 90. This is the format where you get the biggest wins.
Compress PNG. PNG is a lossless format, so the compressor stays lossless-friendly and may only shave a modest amount off the file. Icons, screenshots, and flat graphics still shrink well. Photos saved as PNG usually shrink far more if you convert them to JPG instead, our PNG to JPG converter does exactly that.
Compress WebP. WebP is already a very efficient format, but re-encoding at a lower quality still reduces the file. Expect smaller wins than JPG.

Quality vs file size

Compression is a trade. Push quality down to save more bytes, push it up to keep more detail. For JPG and WebP, the sweet spot for most photos is quality 80 to 90: the file gets much smaller and the loss is invisible at normal viewing distances. Below 60 you will start to see softness and block artifacts near sharp edges. If you care about faces, text, or product detail, do not go under 70 unless the target size forces it. In Target size mode, the compressor picks quality for you and iterates, so you do not have to guess.

Compress images in bulk

Batch compression is built in. Drop a whole folder of images, apply the same quality or KB target to all of them in one pass, and download every result together as a single ZIP archive named compressed-images.zip. There is no per-file cap and no daily limit because the work happens on your own machine. For each file the tool shows the original size, the new size, and the percent saved, so you can see exactly how much lighter every image got.

Your images never leave your device

Most online image compressors upload every photo to a stranger's server, hold it for hours or days, and quietly log the metadata. This tool does the opposite. Decoding, resizing, and re-encoding all happen inside your browser tab, powered by a Web Worker so the page stays responsive. Your files, filenames, and any embedded EXIF data stay on your device. Turn off Wi-Fi after the page loads and the compressor still works.

Works on Windows, Mac, Android, and iPhone

Because the compressor is a web page, it runs anywhere a modern browser runs: Windows 10, Windows 11, macOS, Chromebook, Linux, Android, iPhone, and iPad. On desktop, Chrome and Edge give the fastest compression thanks to Web Worker support; on mobile, Safari and Chrome both work well. There is nothing to install, update, or uninstall.

Frequently asked questions

How do I compress an image to 100KB?: Add your image, switch to Target size mode, type 100 into the KB box (or click the 100 KB chip), and click Compress all. The compressor iterates the encoder until the result lands at or under 100 KB when possible. Very large photos may need a lower target or a small maxWidthOrHeight reduction to hit exactly 100 KB.
Is this image compressor free?: Yes. No signup, no watermark, no email wall, and no daily limit. Compress as many images as your browser can hold in memory.
Are my images uploaded to a server?: No. Compression runs entirely in your browser using a Web Worker and the standard Canvas API. Your original images and the compressed versions are never uploaded, stored, or seen by us. You can disconnect from the internet after the page loads and it still works.
Will my image lose quality?: JPG and WebP are lossy formats, so some quality is discarded when you compress. At a quality of 80 to 90 the loss is invisible for most photos. Lower the slider or the KB target only when you need a smaller file and can accept mild softness or block artifacts around edges.
Can I compress a PNG without losing quality?: PNG compression on the web is essentially lossless-friendly, so a PNG can only shrink so far without changing pixels. Icons, screenshots, and flat graphics compress well. Photos saved as PNG usually shrink far more if you convert them to JPG first using our PNG to JPG tool.
Can I compress many images at once?: Yes. Drop a whole folder of images, compress them in one pass with the same setting, and download every result together as a single ZIP archive.
What image formats are supported?: JPG (also known as JPEG), PNG, and WebP. Each file keeps its original format on output, so a JPG stays a JPG, a PNG stays a PNG, and a WebP stays a WebP.
Does it work on Android and iPhone?: Yes. The compressor is a web page, so it runs in any modern browser on Windows, macOS, Chromebook, Linux, Android, iPhone, and iPad. Nothing to install.
How small can I compress an image?: You can target 20 KB, 50 KB, or any other size. The smaller the target, the more visible quality loss. If a photo will not shrink far enough, add a max width or height (for example 1600 or 1200 px) so the compressor can also downscale.
Why is my output slightly larger than the target KB?: The library iterates the encoder to land at or under the target when possible. If the image content resists compression (a busy photo, or a PNG with lots of detail), the closest safe result may sit just above the target. Lower the KB target, or turn on Max width or height, to push it further.