Are all of these tools free?
Yes. Every tool on imgkilo is free with no account, no watermark and no ads. There is no paid tier that unlocks formats or removes limits.
Every imgkilo image tool in one place
imgkilo is a set of focused tools for the things people actually need to do with an image: make it smaller, change its format, resize it to fit, or turn a phone snap into a compliant ID photo. Every tool runs inside your browser, so your files are never uploaded to a server. Pick a tool below, or jump straight to a specific size or document.
Compress images
Make a file smaller without sending it anywhere. These tools re-encode JPG, PNG and WebP in your browser, either by quality or to a precise kilobyte target that upload forms demand.
Compress JPEG
Shrink JPG photos for web pages, email attachments and application forms.
Compress PNG
Reduce PNG file size while keeping logos, screenshots and graphics sharp.
Compress to a target KB
Land on an exact size such as 100 KB or 1 MB, the way portals require.
Increase image size
Pad a file that is below a required minimum up to the size a form expects.
Convert image formats
Change a file from one format to another while it stays on your device. Move to WebP for lighter pages, turn iPhone HEIC into universal JPG, or rasterise an SVG to a fixed pixel size.
Convert to WebP
Create modern, lighter images for faster-loading websites and apps.
HEIC to JPG
Turn iPhone HEIC photos into JPG files that open everywhere.
PNG to JPG
Flatten PNG screenshots and photos into much smaller JPG files.
JPG to PNG
Get a lossless PNG copy for editing or a PNG-only upload.
JPEG to JPG
Rename .jpeg to .jpg losslessly when a form is picky.
JPG to WebP
Modernise JPG photos so pages download fewer bytes.
PNG to WebP
Get smaller files with transparency preserved.
WebP to JPG
Restore compatibility for apps that cannot read WebP.
WebP to PNG
Recover lossless PNG with transparency from a WebP file.
SVG to PNG
Rasterise a vector SVG at any pixel size you choose.
PDF to JPG
Turn every page of a PDF into a JPG, rendered in your browser.
Resize images
Set exact pixel dimensions or fit a photo within a maximum width and height. Useful for social posts, profile pictures, banners and anywhere a layout expects a known size.
Resize in pixels
Enter the exact width and height, or fit within a maximum, with the ratio locked.
Change image DPI
Set the print resolution (300 DPI and more) losslessly, without resizing.
Popular dimensions
- Instagram 1080x1080
- Instagram 1080x1350
- Story 1080x1920
- 720p 1280x720
- Social 1200x630
- FB cover 851x315
- X header 1500x500
- LinkedIn 1584x396
- 800x600 (4:3)
- Full HD 1920x1080
- 300x300
- 400x400
- 512x512
- 600x600
- 150x150
- 250x250
- 300x250 ad
- 350x350
- 350x450
- 500x500
- 1366x768 screen
- Instagram post
- Instagram story
- Instagram profile
- Shopify
Passport & ID photos
Build a compliant ID photo in the browser: remove or whiten the background, crop to a country spec, and frame the head correctly. Sizes are the commonly required values, and each page tells you to confirm them against the official authority.
Passport photo maker
Remove the background, crop to size and adjust lighting in one place.
White background photo
Replace any background with the plain white that most ID photos need.
2 x 2 passport photo
Crop to the square 2 by 2 inch format used by the US and many visas.
Change photo background
Swap a background for white, a solid colour or transparency.
Passport size photo
Resize and compress to common passport and exam photo specifications.
Passport photos by country
Exam & document photo specs
Why these tools work without uploading
Most online image tools send your photo to a remote server, process it there, and send it back. imgkilo does the work in the browser tab you already have open, using the same Canvas and WebAssembly that power modern web apps. That is faster for you and means private photos, client assets and personal documents never touch a server you do not control.
Nothing leaves your device
All processing happens locally. You can verify it in the Network panel.
Faster than upload tools
No round trip to a server, so results are usually ready in under a second.
No login, no ads, no limits
Run one file or a hundred. No watermarks and no signup wall.
Modern formats included
WebP and HEIC are handled directly, not locked behind a paid plan.
Questions about the tools
Do my files get uploaded to a server?
No. Compression, conversion, resizing and the photo tools all run inside your browser using the Canvas API and WebAssembly. Your files never leave your device, which you can confirm in your browser's Network panel.
Which formats can I work with?
The tools handle JPG, PNG, WebP and SVG directly, and convert HEIC from iPhones into JPG. You can compress to an exact kilobyte size, resize by pixels, and build passport photos from any of these.
Is there a limit on how many images I can process?
There is no hard limit imposed by a server because nothing is uploaded. You can run a single file or a large batch; the only ceiling is your own device's memory.