Free AI writing assistant
Paste your writing and the AI writing assistant improves it: Polish, Deepen, Enhance, or your own instruction. Every change shows in blue against your original words.
Free, no sign-up. Nothing you type is stored. 10 runs a day.
Example
He opened the door on a room that still smelled of her soap. The bed was stripped to the ticking, and someone had taken the curtains, so the afternoon came in flat and white. He stood there longer than he meant to.
Paste it into a page in Feldar, free with 500 credits and no card, and the plan, the cast and the rest of the book sit beside it.
Four ways to improve a passage.
The same four moves the Feldar app offers on a selection, free here for one passage at a time.
Polish
Fixes grammar and awkward phrasing, cuts repetition and filler, and tightens the rhythm. The meaning, the voice and the length stay about the same.
Deepen
Adds concrete sensory detail and the inner life of the people in it, without changing what happens. A passage can grow by up to a third.
Enhance
Makes the prose livelier: stronger verbs, sharper images, better rhythm, at about the same length.
My way
Follows your instruction, such as "make it more formal", "cut it by half" or "end on the question".
Before and after, for each option.
Examples written for this page to show what each option tends to change. Your results will differ.
Polish
Before
I am writing to ask whether you would perhaps be able to consider maybe extending the deadline for the report, if it is not too much trouble, by a week or so.
After
Could you extend the deadline for the report by about a week?
Deepen
Before
She walked into the kitchen. It was late. She made tea.
After
She walked into the kitchen in her socks, so the cold of the tiles came straight through. It was late; the clock on the cooker said 2:14. She made tea she had no intention of drinking.
Enhance
Before
The storm was very bad and the wind was blowing hard against the house all night.
After
The storm worried at the house all night, shouldering the shutters and whistling through the keyholes.
How to use the AI writing assistant.
- Paste one passage. A paragraph to a page works best. It reads up to 3,000 characters, and it does better on one coherent passage than on a whole chapter.
- Choose the kind of writing. Fiction and prose keeps story conventions in mind; Anything else suits emails, essays, blurbs and posts.
- Pick one option. Start with Polish if you aren't sure. Use Deepen for a scene that feels thin, Enhance for flat prose, and My way for anything specific.
- Read the blue. Every word in blue is new or changed; black words are yours, untouched. Accept a change by keeping it, reject it by going back to your original.
- Run it again if you like. Each run is a fresh attempt. You can also run a second option on the result, such as Polish after Deepen.
- Copy the version you want. Copy takes the improved text without the colours, ready to paste.
Common problems it helps with.
- Filler words. "Very", "really", "just", "that", "actually": Polish cuts most of them and keeps the ones that carry weight.
- Telling instead of showing. "She was nervous" becomes something she does. Deepen is the option for this, or My way with "show, don't tell".
- Repetition. The same word twice in a sentence, or three sentences that all start with "He". Polish varies them.
- Weak verbs. "Walked quickly" becomes "hurried"; "was blowing hard" becomes "battered". Enhance leans on stronger verbs.
- Long, tangled sentences. Polish splits them and puts the important part at the end, where the reader feels it.
- A passage that is too long. My way with "cut it by a third" trims it while keeping your best lines.
A worked example: one paragraph, three passes.
An illustration written for this page.
Lena's first draft of a scene reads: "Jonah was nervous about the interview. He sat in the waiting room. There were other people there too. He looked at his phone and then at the clock. He was very worried he would not get the job."
Pass one, Deepen. The assistant gives Jonah something to do with his hands, a detail about the other candidates (all in better suits), and a thought about his rent. Lena keeps the suits and the rent and cuts the hands.
Pass two, My way: "cut the telling, show the nerves". "He was very worried he would not get the job" disappears; in its place, Jonah reads the same line of a magazine four times. Lena keeps it.
Pass three, Polish. Small changes only: "looked at his phone and then at the clock" becomes "checked his phone, then the clock". The paragraph is now half its old length and twice as tense.
Three runs, and every change was a choice Lena made, which is the point of seeing the edits in blue.
What it changes, and what it leaves alone.
| It will | It won't |
|---|---|
| Fix grammar, spelling and clumsy phrasing | Change who is speaking or the tense, unless you ask |
| Cut repetition and filler words | Add new plot events or facts |
| Add sensory detail (Deepen) or sharper wording (Enhance) | Keep anything you type after the page closes |
| Follow a short instruction of up to 200 characters | Make text pass an AI detector |
Tips for each kind of writing.
| Kind of writing | Best option | What to check afterwards |
|---|---|---|
| A scene in a story | Deepen for thin scenes, Enhance for flat ones | That the new details fit your world and your character |
| Dialogue | My way: "make it sound more natural" or "cut the small talk" | That each speaker still sounds like themselves |
| A book blurb | Enhance, then Polish | That the hook, the stakes and the genre are all there in the first two lines |
| An email | Polish, with Anything else | That the request is in the first sentence and the tone fits the person |
| An essay paragraph | Polish, with Anything else | That the argument and any facts are still yours and still right |
| A cover letter or bio | My way: "make it more confident" | That nothing has been added that isn't true |
Writing assistant or AI writer?
Use the writing assistant
When the words are yours and you want them better. You see each change against your original.
Use the AI writer
When you want new text: the next paragraph, a scene from a brief, or a rewrite you will judge as a whole. AI writer
Use Feldar
When you are writing a book: the same Polish, Deepen and Enhance on any selection, plus Checks across a page, with your whole project as context.
Honest limits.
One passage at a time
It doesn't know the rest of your document, so it can't keep a style decision you made three pages ago.
It can be wrong
It may smooth away a deliberate rhythm or an odd word you chose on purpose. Keep what you meant.
10 runs a day
The daily limit keeps it free. A safety check screens each passage, and it writes for a general audience.
Improve a whole manuscript in Feldar.
In the Feldar app, select any passage to Polish, Deepen or Enhance it, or tell it what you want; the rewrite comes back with the added words marked, and Apply keeps it. Checks reads a page for five kinds of problem, from grammar to point of view, and every fix waits for your OK. Feldar is novel writing software with an AI novel writer that leaves the choices to you.
Questions about the AI writing assistant
Is the AI writing assistant free?
Yes. You can use it 10 times a day with no sign-up and no card.
Do you store my writing?
No. Your text is sent to the AI model to write the improved version and is not saved or logged by Feldar. It exists only on your screen until you copy it.
How do I see what changed?
Words in blue are new or changed; words in black are your original, untouched. Copy gives you the plain improved text.
Can I use it for things other than fiction?
Yes. Choose Anything else for emails, essays, blurbs, cover letters and posts.
Which AI model does it use?
Kimi K2.6, an open model by Moonshot AI, running on Cloudflare Workers AI, with Google's Gemma taking over on very busy days.
Is it a grammar checker?
Polish fixes grammar and spelling as part of tightening a passage, but it also rewords. For a line by line check that you accept or reject one issue at a time, use Checks in the Feldar app.
Will it change my voice?
It is told to keep your voice, point of view and names, and the blue shows exactly what it touched, so you can undo anything that doesn't sound like you.