Free AI Tools

Free AI tools, one run each without an account: image editor, headshots, upscaler, unblur, image combiner, image to prompt, email writer and text rewriter.

Image to Image AI

Upload a photo, describe the change and generate a new image with the leading image models.

AI Image Editor

Remove objects, swap backgrounds, recolor and relight any photo with a sentence.

AI Image Upscaler

Enhance, unblur and double the resolution of any small or compressed image.

AI Email Writer

Describe what you need to say, pick a tone and get a ready to send professional email.

Unblur Image

Fix blurry, pixelated or out of focus photos. The AI restores faces, text and detail and doubles the resolution.

AI Image Combiner

Upload two photos, describe how to merge them and get one seamless picture: a product in a scene, two people in one shot.

Image to Prompt

Upload any picture and get a detailed AI prompt describing its subject, style, lighting and composition.

AI Text Rewriter

Paste any text and paraphrase, simplify, formalise, shorten, expand or fix the grammar in seconds.

How these tools work

Real tools, real models, one free run

Every tool on this page is a live workflow, not a demo. Your upload or brief is processed by the same production models Krater customers use, with one complimentary run per visitor and per tool so everyone gets a fair try.

Each tool page shows the full set of models available for that job. The free run uses a fast, cost efficient default; inside Krater you unlock every model, higher resolutions, multiple outputs, video, documents and 300+ app connections in one workspace.

New tools are added regularly. If there is a job you would like to see here, tell us inside Krater.

Everything these tools do, and 400+ models more

One workspace for images, video, writing, documents and automation. Get started and keep every result in one place.