Best online photo editing and resizing App and website

Photo editing has never been more accessible — you no longer need expensive desktop software to remove a background, sharpen a selfie, or resize an image for a form. This guide rounds up the best free online photo editing and resizing tools available today, including dedicated options for resizing photos to a specific file size (like 20kb or 50kb) for exam and job application forms, a common need that most editing guides skip entirely.

Quick answer: for automatic background removal, Remove.bg is the fastest option. For general all-purpose editing (filters, retouching, graphics), Canva and Pixlr are the most complete free tools. For resizing a photo to a specific KB size for exam or document forms, use a dedicated compressor tool rather than a general editor — details below.

Compare the Best Photo Editing & Resizing Tools

Free-tier features and watermark policies change periodically — always check the tool's current pricing page before relying on a specific feature.

1. Remove.bg — Automatic Background Removal

Remove.bg is the best tool available for automatically removing the background from a photo. Its AI detects the subject of your image and strips the background in about five seconds, with no manual selection or masking required. Once the background is removed, you can set a new background color or image, or export with a transparent background entirely.

This is a fully automatic photo editor in the truest sense — you upload an image and the removal happens on its own, without brushes, selection tools, or manual adjustment. It's the fastest option on this list if background removal is your only goal.

Site: remove.bg

2. Pixlr — Full-Featured Browser Editor

Pixlr is a cloud-based suite of image editing tools that covers everything from quick fixes to more advanced layer-based editing, entirely in your browser with no download required. It supports filters, graphics overlays, background removal, and a library of free templates for YouTube banners, Instagram stories, WhatsApp stories, resumes, and business cards.

Because it runs entirely online, Pixlr works on any device with a browser, making it a strong choice if you need a capable editor without installing software.

Site: pixlr.com

3. Canva — Design and Photo Editing Combined

Canva combines photo editing with full design tools, letting you upload, edit, crop, and enhance photos, then drop them directly into a design — social post, poster, resume, or anything else — without switching platforms. It includes auto-focus adjustment, filters, graphics, and background removal, and works across desktop and mobile.

Does Canva leave a watermark on edited photos?

No — unlike some competing editors, Canva's free plan does not add a watermark to your exported photo after editing.

Site: canva.com/photo-editor

4. Fotor — Quick Fixes and Collages

Fotor is a photo editing platform available on desktop, mobile, and directly in-browser. It's well suited to fast touch-ups — fixing blemishes, building a photo collage, or applying a quick enhancement — and also includes basic resizing and graphic design tools. Some advanced export options sit behind a paid tier, so double-check before relying on a specific feature for a time-sensitive task.

Site: fotor.com

5. PicsArt — Creative and Social Media Editing

PicsArt is an all-in-one creative platform for photo and video editing, popular for social-media-style edits — masking, stickers, background replacement, and object removal. Note that PicsArt has shifted a growing number of its most useful tools behind a paid subscription over the past couple of years, so check current feature availability before counting on a specific tool being free.

Popular features include:

• Background Eraser to erase and replace backgrounds
• Remove Object tool to clean up unwanted items in a photo
• A large library of free-to-use stock images
• 200+ designer fonts for adding text to photos
• Selfie retouching tools including hair color changer and makeup effects
• AI-powered background blur

Site: picsart.com

6. Simple Image Resizer — Resize Dimensions Without Losing Quality

Simple Image Resizer lets you resize an image or scanned document without installing any software, supporting JPEG, JPG, PNG, BMP, and GIF formats. It's a good general-purpose resizing tool when you need to change an image's width and height while preserving quality — though for resizing to a specific file size (KB) for a form, a dedicated compressor (below) is usually a better fit.

Site: simpleimageresizer.com

7. Instasize — Filters and Mobile-Style Editing

Instasize offers over 130 filters along with photo and video resizing, layering, background removal, text editing, and a vintage effect option. It's geared toward quick, mobile-style edits rather than precision editing work.

Site: instasize.com

How to Resize a Photo to a Specific File Size (KB) for Exams and Forms

One of the most common — and most frustrating — photo tasks isn't creative editing at all: it's shrinking a photo down to fit a strict file-size limit for an exam form, job application, or passport photo upload. Most government and institutional application portals specify an exact size range, commonly 20kb–50kb for a photo and 10kb–20kb for a signature, and rejecting an upload for being even slightly over the limit is a common source of frustration.

To resize a photo to a specific KB size:

• Use a dedicated compressor, not a general editor. Tools built specifically for compressing to a target file size (rather than just changing pixel dimensions) give you a size input field — set it to the exact KB range the form requires.
• Check both dimensions and file size. Many forms specify both a pixel size (e.g. 200x230px) and a KB range — resizing dimensions alone won't guarantee the file size requirement is met.
• Save as JPEG, not PNG, when a small file size matters — JPEG compression produces much smaller files than PNG for photographic images.
• For passport-style and signature photos specifically, look for a tool that offers a dedicated "passport photo" or "signature resize" mode, since these have fixed standard dimensions that general editors don't preset for you.

Frequently Asked Questions

Which photo editor is completely free with no watermark?

Canva and Pixlr are both free to use for standard photo editing without adding a watermark to your exported image. Remove.bg's free tier also exports without a watermark, though at a capped resolution.

What's the best automatic photo editor?

For fully automatic background removal, Remove.bg is the strongest option — its AI detects and removes the background with no manual selection needed. For automatic photo enhancement (lighting, color, sharpness), Fotor and PicsArt both include one-click auto-enhance tools.

How do I resize a photo to 20kb or 50kb online?

Use a dedicated file-size compressor tool that lets you enter a target KB size directly, rather than a general photo editor. Set the target size to match your form's requirement exactly, save as JPEG, and re-check the file size after export before uploading.

Can I edit photos online without downloading any software?

Yes — every tool listed in this guide runs entirely in your browser. None require a desktop app installation, though several also offer optional mobile apps for convenience.

Which tool is best for passport-size photos?

Look for a resizer with a dedicated passport-photo preset, since these tools apply the correct standard dimensions automatically rather than requiring you to enter them manually.

Last updated: 8 August 2026. Free-tier features and watermark policies for third-party tools change periodically — always confirm current details on the tool's own site before relying on a specific feature.