From blank page to final draft.
Write with an assistant that knows your document, check your AI detection score, adjust your style so it sounds like you, then export to PDF or Word, layout included.
Free, no credit card
Animated demo of the SparkWriter editor, with a sample document
An editor that writes with you.
Before it's a detector, SparkWriter is a real document editor, with AI wherever you need it. Hover over the examples.
It rewrites your selection
Select a passage and pick an action.
It is undeniable that social media exert a considerable influence on the way young people get their news.
It finishes your sentences
Autocompletion suggests what comes next in gray. Tab to accept, or keep writing.
For Sartre, freedom is not a state but a responsibility we cannot refuse.
It has read your document
Ask a question about your paper: it answers with your text in front of it.
too vague: add an example
Everything is one “/” away
Headings, tables, formulas, AI: type “/”.
You hand in a clean file
PDF, Word, LaTeX or Markdown, layout included.
Import: .docx, .md, .html, .txt
ChatGPT writes.
SparkWriter shows you whether it shows.
ChatGPT is great at generating text. But an essay gets written, reread and handed in: that's where SparkWriter makes the difference.
| What you do | ChatGPT | SparkWriter |
|---|---|---|
| Know if it sounds like AI | No detection score | Score and detected signals, in one click |
| Make it sound human | You ask for a rephrase, without measuring the result | Humanizer with tone and intensity, then a new score |
| Get ahead faster | No autocompletion while you type | Suggestions in gray, Tab to accept |
| Find your work again | Conversations in a history | Your documents sorted by labels, with search |
| Hand in the right format | No LaTeX export | PDF, Word, LaTeX or Markdown |
Know if it sounds like AI
ChatGPT · No detection score
SparkWriter · Score and detected signals, in one click
Make it sound human
ChatGPT · You ask for a rephrase, without measuring the result
SparkWriter · Humanizer with tone and intensity, then a new score
Get ahead faster
ChatGPT · No autocompletion while you type
SparkWriter · Suggestions in gray, Tab to accept
Find your work again
ChatGPT · Conversations in a history
SparkWriter · Your documents sorted by labels, with search
Hand in the right format
ChatGPT · No LaTeX export
SparkWriter · PDF, Word, LaTeX or Markdown
ChatGPT is a trademark of OpenAI. Comparison with ChatGPT, canvas included, as of October 2026.
Try the Humanizer. No account needed.
Paste a paragraph written by ChatGPT, Claude or Gemini, and get back a version that sounds like you.
Your humanized version will appear here.
Start free.
Go Pro for finals.
The free plan lets you try every tool, Humanizer included. No credit card.
Free
To try it out
€0/ month
- 5 documents
- 100 AI completions per week
- 40 AI actions per week, assistant included
- 10 AI detector scans per week
- 5 humanizer rewrites per week
No credit card
Your documents stay yours
Pro
For finals season
€9.99/ month€19.99Billed €119.88/year
- Unlimited Humanizer and AI detector
- Unlimited AI assistant and autocompletion
- All the editor's AI actions
- Unlimited documents
- Priority support
Cancel anytime — no commitment
Secure payment by Stripe
The questions we get asked.
Another question? Write to us at contact@sparkwriter.ai.
SparkWriter is a document editor with built-in AI, designed for students. You write with an assistant that knows your document, autocompletion and AI actions on your selection. You measure your AI detection score, humanize your text so it sounds like you, then export it to PDF or Word.
Yes. The free plan gives you 5 documents, plus 40 AI actions (assistant included), 100 autocompletions, 10 AI detector scans and 5 humanizations per week — enough to write a full essay before you hit any limit. No credit card at sign-up.
It uses a large language model to rate your text (0–100%) on how “AI” it sounds, and lists the specific signals it spotted. It's a good warning indicator, but no detector is perfect — Turnitin included. Treat the score as a guide, not a guarantee.
Pick a tone (natural, casual, professional, academic) and an intensity. The humanizer rewrites your text to break the rhythm patterns and clichés that detectors latch onto, while keeping your meaning, citations and facts intact. You can humanize a selection in the editor or paste plain text into the dedicated Humanizer tab.
Often, yes — but we can't promise 100%. Detectors are a moving target and any tool that claims a guaranteed bypass is lying. SparkWriter lowers detection risk by rewriting the patterns most detectors key on. Always check what your school allows and own what you submit.
We make the tools — you decide how to use them. Most students use SparkWriter to draft faster, polish their own work, and translate. If your university bans AI assistance entirely, don't use it for assessed work. If they allow assisted writing with disclosure, disclose it. Your call.
The editor and AI work in 16+ languages including French, English, Spanish, German, Italian, Portuguese, Dutch, Polish, Russian, Turkish, Arabic, Hindi, Indonesian, Japanese, Korean, Vietnamese and Chinese. The humanizer auto-detects your input language.
On the yearly plan, email us at contact@sparkwriter.ai within 14 days of purchase and we'll refund you. The monthly plan isn't refunded, but you can cancel anytime: you keep Pro until the end of the month you've already paid for.
Yes. Cancel from the settings in one click — your subscription stops at the end of the current period and you keep Pro until then. Going back to free doesn't delete anything you wrote.
