FASTIMG
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free AI image editor · prompt-driven

Edit images by typing,
a free AI image editor

FastImg is a free AI image editor: upload an image and edit it with one prompt after another. Each step builds on the last, so your subject stays consistent, every version is one click back, and you can stop a render anytime.

Drop an image, then describe your change… Start ↵
generate·Esc cancel· last prompt
FastImgEdit 0 of 4
Original portrait before AI image editing
AI image edit moving the subject to a courtyard background
AI image edit changing the dress to a sequined style
AI image edit adding flowers to the courtyard scene
AI image edit returning to a green sundress
01234

Original

What is FastImg?

FastImg is a free online AI image editor that edits existing photos with text prompts. Upload an image, describe the change you want, refine the same subject through unlimited editing steps, and export the result as a PNG without creating an account.

How the AI image editor builds on each edit

Original portrait before AI image editing 0
Original
AI image edit moving the subject to a courtyard background 1
“Move her to the courtyard…”
AI image edit changing the dress to a sequined style 2
“Make the dress sequined…”
AI image edit adding flowers to the courtyard scene 3
“Fill the courtyard with flowers…”
AI image edit returning to a green sundress 4
“Back to a green sundress…”

The subject stays consistent: you only describe what to change this time. Click any frame to go back and branch a new edit from there.

How to edit an image with AI prompts

  1. Upload an image
  2. Type the edit you want
  3. Generate the AI edit
  4. Undo, revisit, or branch from any previous version
  5. Export the final image as a PNG

Built for continuous AI photo editing

Edit model Builds on the last Instruction-based edits keep the subject consistent, not a fresh generation each time
Cancel Press Esc Stop a render mid-flight; changing your mind costs nothing
History Every step Jump to any point on the timeline and branch a new edit from there
Compare Before / after Drag the slider to see exactly what this step changed
Input Keyboard-first Enter to generate, Esc to cancel, ↑ to recall a prompt
Export PNG, one click Download any version straight from the timeline

What can you edit with FastImg?

FastImg vs image-to-image generators

Most image-to-image generators create one new result from your input and a prompt in a single pass. Across several rounds the subject, composition, and details drift, and there is no history to fall back on. FastImg is built for continuous editing instead: every step builds on the previous result, keeps an editing chain you can undo and branch, and holds the subject consistent while you keep refining.

unlimited edits
continuous prompt-based editing
1
click to export
download any version as a PNG
0
in fees
free forever, no signup, no install

Privacy and image handling

  • No account required
  • Your timeline lives in the browser tab
  • Close the tab and the timeline is gone
  • Images are sent only to produce each edit

Supported formats and export

  • Runs in your browser, nothing to install
  • No signup required
  • Prompt-based editing
  • PNG export
  • One-click download

Frequently asked questions

Is FastImg free to use?

Yes. FastImg is free forever, with unlimited AI image edits, no signup, and no install.

Do I need to create an account?

No. You can upload an image, edit it with prompts, and export the result without creating an account.

What is the difference between FastImg and image-to-image generators?

FastImg is built for continuous editing. Instead of generating a separate new image from the same input each time, each edit builds on the previous result, so you can refine, undo, branch, and keep the subject consistent.

What image edits can I make with prompts?

Change or replace backgrounds, remove unwanted objects, and add elements. Change lighting, clothing, hairstyle, or season, restyle portraits and product photos, and create social, ad, and creative visuals.

Can I undo an edit or branch from an earlier version?

Yes. The timeline keeps each step, so you can go back to an earlier version and branch a new edit from there.

Does FastImg store my images?

No account is required, your timeline lives in the browser tab, and images are sent only to produce each edit. Close the tab and the timeline is gone.

Drop in an image and start talking.

Drop an image, then describe your change… Start ↵