Cobalt Tools UploadReady

Free browser tool

UploadReady: Resize and Compress Images

Prepare images for upload forms with exact file-size limits, dimensions, cropping and JPG, PNG or WEBP conversion. Process files locally in your browser.

Select an imageImage tools

How to use this tool

  1. 1Choose or drop your image into the editor.
  2. 2Set the required KB, dimensions, crop and output format.
  3. 3Process the image, check the preview and download the result.

Browser processing

UploadReady: Resize and Compress Images

Prepare images for upload forms with exact file-size limits, dimensions, cropping and JPG, PNG or WEBP conversion. Process files locally in your browser.

Original preview

Upload a file to preview it here.

Result preview

Processed image appears here before download.

Frequently asked questions

How do I choose a preset?

Use a preset matching your form’s file-size or dimension requirement. You can adjust its settings before processing.

Where are my files processed?

Selected files are processed locally in your browser. Cobalt Tools does not upload or store them.

Popular image presets

Start with a preset for the file size, dimensions or format you need.

All image tools
Compress

Image to 100KB

Compress and resize an image until it fits under a 100KB upload limit.

Open preset
Compress

Image to 200KB

Create an upload-ready image under 200KB without installing software.

Open preset
Compress

Image to 500KB

Reduce image file size to fit under a 500KB upload requirement.

Open preset
Compress

JPG to 100KB

Shrink a JPG photo to fit a 100KB upload limit while keeping it usable.

Open preset
Compress

JPG to 200KB

Compress a JPG image to a practical 200KB limit for online forms.

Open preset
Convert

PNG to 100KB

Convert and compress a PNG image to a small JPG that fits under 100KB.

Open preset
Resize

600x600 Image

Crop and resize an image to an exact 600 by 600 pixel square.

Open preset
Resize

1024x1024 Image

Create an exact 1024 by 1024 square image for profiles, catalogs or forms.

Open preset
Resize

35x45mm Photo

Prepare a 35x45mm-style photo at 300 DPI dimensions for printing or upload.

Open preset
Resize

2x2 Inch Photo

Crop and resize a portrait to a 2x2 inch-style square at 300 DPI.

Open preset
Convert

HEIC to JPG

Convert iPhone HEIC photos to JPG in your browser when browser conversion succeeds.

Open preset
Convert

PNG to JPG

Turn a PNG into a smaller JPG for upload forms and websites.

Open preset
Convert

WEBP to JPG

Convert a WEBP image to JPG when an upload form does not accept WEBP.

Open preset
Compress

Online Form Resizer

Resize and compress a photo for an online application, profile or upload portal.

Open preset
Compress

Application Photo

Make a square, lightweight photo for application forms that need a compact file.

Open preset
Compress

Photo Under 1MB

Reduce a large camera photo to under 1MB for upload limits.

Open preset
Compress

Image Under 2MB

Make an image fit under a 2MB maximum upload size.

Open preset
Resize

300x300 Image

Create a small 300 by 300 pixel square image for avatars and forms.

Open preset
Resize

800x800 Image

Make an exact 800 by 800 pixel square image for products, profiles or portals.

Open preset
Resize

Square Profile Picture

Crop any image into a square profile picture and optionally compress it.

Open preset
Compress

Compress Image

Compress images online for free with local browser processing.

Open preset
Resize

Resize Image

Resize images by pixel width and height online for free.

Open preset
Resize

Crop Image

Crop images online for free with browser processing.

Open preset
Convert

Convert to JPG

Convert images to JPG online for free.

Open preset
Convert

Convert from JPG

Convert JPG images to PNG or WEBP online for free.

Open preset
Convert

JPG to WEBP

Convert JPG to WEBP online for free.

Open preset
Convert

PNG to WEBP

Convert PNG to WEBP online for free.

Open preset
Convert

Image to WEBP

Convert images to WEBP online for free.

Open preset
Convert

HEIC to WEBP

Convert HEIC photos to WEBP online for free.

Open preset
Convert

WEBP to PNG

Convert WEBP to PNG online for free.

Open preset
Convert

JPG to PNG

Convert JPG to PNG online for free.

Open preset
Convert

SVG to JPG

Convert SVG to JPG online for free.

Open preset
Convert

GIF to JPG

Convert GIF to a static JPG online for free.

Open preset
Convert

Rotate Image

Rotate images online for free.

Open preset
Convert

Watermark Image

Add a text watermark to images online for free.

Open preset
Convert

Meme Generator

Create meme images online for free.

Open preset
Convert

Photo Editor

Edit photos online for free with simple browser controls.

Open preset
Image

Upscale Image

Upscale images online for free with browser processing.

Open preset
Convert

Remove Solid Background

Remove simple solid image backgrounds online for free.

Open preset
Every card opens a real preset-loaded editor, not a placeholder page.

Related free tools

Search all tools
Compress ImageCompress images online for free with local browser processing.Online Form ResizerResize and compress a photo for an online application, profile or upload portal.2x2 Inch PhotoCrop and resize a portrait to a 2x2 inch-style square at 300 DPI.Image to 100KBCompress and resize an image until it fits under a 100KB upload limit.Image to 200KBCreate an upload-ready image under 200KB without installing software.Image to 500KBReduce image file size to fit under a 500KB upload requirement.