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Image editor

Free online image editor for shapes, polylines, brush, marker, text, mosaic, blur, and eraser annotations

About this tool

The online image editor combines cropping, rotation, flipping, resizing, and common visual adjustments in one lightweight workflow. Edits produce a new file from the uploaded image and do not overwrite the original source.

Operation order affects quality. Establish composition and orientation first, then set output dimensions and visual adjustments, and choose format and quality last. Shrinking too early removes pixels needed for later work, while repeated lossy exports accumulate compression artifacts.

How to use it

  1. Upload the best source

    Prefer the largest, least-compressed file available and confirm that its orientation displays correctly.

  2. Make structural edits

    Crop, rotate, or flip before setting the target dimensions and necessary visual adjustments.

  3. Inspect and export

    Check subject, edges, and color at normal viewing sizes, then choose the format and quality for the destination.

Supported range and limits

Available tools
Shapes, polylines, freehand brush, marker, text, mosaic, blur and eraser
Main uses
Annotating screenshots, and covering sensitive information before sharing
Mosaic and blur
Genuinely rewrite the pixels rather than covering them; the original content cannot be recovered from the exported file
How to redact safely
Use an opaque fill or mosaic. A semi-transparent shape or a light blur can still be reversed or guessed at
Output
A flattened image with the annotations burned into the pixels; no editable layers are kept
Where it runs
Entirely in the browser; the image is never uploaded

When you would use it

  • Preparing a web image

    Crop to a fixed ratio and reduce to the real display dimensions to avoid unnecessary transfer size.

  • Making a quick photo correction

    Fix orientation, composition, and minor visual issues, then export a separate shareable copy.

  • Redacting a screenshot before you share it

    Phone numbers, order IDs and internal hostnames in a support screenshot get covered with mosaic or an opaque block first.

What to know before you start

  • Browser preview can be affected by display color configuration. Use color-managed professional software for strict print workflows.
  • Every JPG export applies lossy compression again, so retain the source and avoid repeated save cycles.
  • Choose PNG or WebP for transparent regions, otherwise transparent pixels can be replaced by an opaque background.

Related concepts

non-destructive workflow
Keeping the source intact and saving edits to a new file so the work can be revised or re-exported.
aspect ratio
The relationship between width and height, used to preserve composition or fit a fixed container.

Frequently asked questions

Does image editing upload my files?
No. Images are decoded, drawn on, mosaicked, blurred, and exported locally in your browser. Files are not uploaded to a server.
Which drawing tools are supported?
Rectangle, ellipse, polyline, brush, marker, text, mosaic, blur, and eraser are supported. Rectangles and ellipses can be stroked or filled.
Does the eraser remove the original image?
No. The eraser deletes annotation objects on the canvas without changing the original image. Mosaic and blur regions can also be selected and deleted, or handled with undo, redo, and reset image.
Can I choose the output format?
Yes. You can export JPG, PNG, or WebP. JPG does not support alpha transparency, so transparent areas are filled with white.
Can mosaicked content be recovered?
The mosaic genuinely rewrites the pixels, so the original is not in the exported file and cannot be recovered. But note that a light blur or a semi-transparent block still leaks enough to guess at; use mosaic or an opaque fill for anything sensitive.
Can I edit the annotations after exporting?
No. The export is a flattened image with the annotations burned into the pixels and no editable layers. Keep the original and re-annotate from it when you need changes.