Free Online Image Tools

What Each Tool Does

Every tool below opens instantly, needs no account, and processes your data locally in your browser. Here is what each one is for:

Image Compressor

Shrink JPG, PNG and WebP file sizes with a quality slider and side-by-side preview — perfect before uploading or emailing photos. Open the Image Compressor →

Image Resizer

Resize images to exact pixel dimensions or percentages, with aspect-ratio lock and instant download. Open the Image Resizer →

Watermark Remover

Paint over small watermarks, stamps and blemishes to clean up an image right in the browser. Open the Watermark Remover →

Circle Crop

Crop any photo into a perfect circle with drag positioning and zoom — the fastest way to a round avatar. Open the Circle Crop →

YouTube Thumbnail

Preview every available thumbnail size for a YouTube video — up to full 1280×720 HD — and download the one you choose. Open the YouTube Thumbnail →

Pixelate Image

Add a blocky mosaic effect to any photo — JPG, PNG, WebP or GIF. Open the Pixelate Image →

Polaroid Effect

Frame any photo in a classic white instant-photo border, with an optional caption. Open the Polaroid Effect →

Image Dimensions Finder

Instantly see an image's width, height, aspect ratio and megapixel count. Open the Image Dimensions Finder →

Blank Image Generator

Generate a new solid-color or transparent placeholder image at any size. Open the Blank Image Generator →

Replace Image Color

Swap every pixel of one color in a photo for a different color. Open the Replace Image Color →

Horizontal to Vertical Image

Turn a landscape photo into a portrait canvas for Stories and Reels. Open the Horizontal to Vertical Image →

Vertical to Horizontal Image

Turn a portrait photo into a landscape canvas with side padding. Open the Vertical to Horizontal Image →

Rainbow Filter

Overlay a smooth rainbow gradient tint on any photo. Open the Rainbow Filter →

ASCII Art Generator

Convert a photo into text-character art, right in your browser. Open the ASCII Art Generator →

Symmetry Effect

Mirror one half of a photo onto the other for a symmetric, kaleidoscope-style look. Open the Symmetry Effect →

Blur Face in Image

Manually draw boxes over faces or private details, then blur or pixelate them. Open the Blur Face in Image →

Image Analyzer

Dimensions, file size, format and a dominant color palette with hex codes. Open the Image Analyzer →

Rotate Image

Rotate any image by any angle, not just 90-degree steps. Open the Rotate Image →

Transparent Image Generator

Create a brand-new, fully transparent PNG canvas at any size. Open the Transparent Image Generator →

Image Quality Adjuster

Fine-tune JPEG re-encoding quality with a live file-size estimate. Open the Image Quality Adjuster →

Low-Quality Image Maker

One-click 'deep-fried meme' degrade effect. Open the Low-Quality Image Maker →

Invert Image Colors

Flip every pixel to its negative — works on any image format. Open the Invert Image Colors →

Crop Image

Drag to select any rectangular region and crop to it. Open the Crop Image →

Image Puzzle Splitter

Split any image into a grid of separate, individually-downloadable pieces. Open the Image Puzzle Splitter →

Remove Image Color

Make a specific color transparent — a simple chroma-key style tool. Open the Remove Image Color →

Number to Image

Turn a number or short piece of text into a clean, downloadable image. Open the Number to Image →

How to Choose the Right Tool

The Image Compressor reduces file size for JPG, PNG and WebP with a quality slider and live before/after comparison — start there when a photo is too heavy. The Image Resizer changes dimensions precisely (with aspect-ratio lock) for profile pictures, banners and print. Circle Crop turns any photo into a round avatar with adjustable zoom. The Watermark Remover lets you paint over small marks and blemishes. And the YouTube Thumbnail Downloader previews every available resolution of a video's thumbnail so you can save exactly the size you need. Beyond those originals, the newer additions cover more specific jobs: pixelating or manually blurring a face for privacy, rotating to any angle, splitting an image into a grid, generating blank or transparent canvases from scratch, converting between landscape and portrait framing, and pulling dimensions or a dominant color palette out of a photo.

Frequently Asked Questions

Are my images uploaded anywhere?

No — every tool processes images locally in your browser. Your files stay on your device.

Which formats are supported?

JPG, PNG, WebP and GIF are supported across the tools; output format options depend on the tool, though most of the newer tools always export a PNG to preserve transparency and quality.

Will image quality suffer?

You control the trade-off: compression and resizing show you a preview so you can balance quality against file size before downloading.

Can I use these tools on my phone?

Yes — they work in modern mobile browsers, and you can pick images straight from your camera roll.

Explore More WiserWork Categories

WiserWork offers 423 free browser-based tools across 26 categories — all private, all free, no sign-up required.