Image Converter, Compressor & Resizer

How to convert or compress an image

Drop one or more images above (or paste from your clipboard), pick a format to convert to (PNG, JPG, WebP or AVIF) and a quality level to compress, and DailyDesk re-encodes each image right inside your browser. You'll see the new format and file size instantly, then download images one at a time or all at once as a .zip.

Convert PNG to WebP, JPG to PNG, HEIC and more

Change an image's format without installing anything or uploading a file. Convert PNG to WebP or AVIF to shrink photos for the web, PNG to JPG to email or post them, or JPG to PNG when you need a lossless copy — all in your browser, in bulk.

Compress JPG & PNG without uploading

Drag in a batch and lower the quality to reduce image file size for email, websites or storage — no watermark, no sign-up, and nothing ever leaves your device. Use Target size mode to hit a specific KB budget automatically.

WebP vs JPG vs PNG vs AVIF — which should you use?

A quick guide to picking an output format:

• JPG (JPEG) — best for photos you'll share or upload anywhere; universally supported.
• PNG — lossless, with transparency; best for logos, screenshots and graphics with sharp edges.
• WebP — smaller than JPG and PNG at the same quality, with transparency; ideal for fast-loading websites.
• AVIF — usually the smallest files of all; great for the web when you don't need older-browser support.

Common questions

Are my images uploaded to a server?

No. Every image is processed locally using your browser's built-in canvas engine. Nothing is uploaded, stored, or sent anywhere — you can even disconnect from the internet and it keeps working.

Which formats can I convert between?

Load JPEG, PNG, WebP, AVIF, GIF or BMP, and convert to PNG, JPG, WebP or AVIF (AVIF export appears when your browser supports it). WebP and AVIF usually give the smallest files at the same visual quality, which makes them ideal for the web; PNG stays lossless.

How do I convert PNG to JPG (or JPG to PNG)?

Set Convert to to your target format and drop the image — that's it. Converting a transparent PNG to JPG flattens the transparency onto a background colour you choose; convert to PNG or WebP instead to keep transparency.

Can it convert HEIC photos from my iPhone?

Raw .heic files open in Safari (Mac or iPhone) — but Chrome and Firefox can't decode Apple's HEIC format without a heavy add-on, which would break our "no uploads, no libraries" promise. Easy ways around it: open this page in Safari; AirDrop, share or email the photo first (iOS usually converts it to JPEG on the way out); or set your iPhone to capture JPEG (Settings → Camera → Formats → Most Compatible). Screenshots are already PNG and work everywhere.

Will compressing reduce the quality?

JPEG and WebP are "lossy" — lowering the quality slider trades a little visual detail for a much smaller file. Around 75–85 is usually indistinguishable from the original. PNG is lossless, so the biggest savings there come from resizing or converting to WebP.

How do I resize to exact dimensions?

Set Resize to "Fit within max width & height" and enter your limits — images scale down to fit while keeping their aspect ratio. "Don't enlarge images" keeps small images from being blown up.

Is there a file-size or batch limit?

No limits, no watermark, no sign-up. Process as many images as your device's memory allows.

Does it remove location and camera data?

Yes — re-encoding strips EXIF metadata such as GPS location, camera model and timestamps, so the images you download don't carry hidden personal information.

How do I reduce a photo's file size for email?

Drop the photo in, choose JPG or WebP, and lower the quality slider — or use Target size to aim for, say, 500 KB. Resizing the dimensions down as well gives the biggest reduction for email attachments.

Can I convert or compress many images at once?

Yes — add a whole batch by drag-and-drop, file picker or clipboard paste. Each image is processed in turn and you can download them all at once as a single .zip.

More private, in-browser tools

Other free DailyDesk tools that work the same way — nothing is uploaded:

• World Time Planner — find a meeting time that works across time zones.
• Square Footage & Square Meter Calculator — draw a floor plan to get every room's area.
• All calculators — health, percentage, bill, fuel cost and more.