Grammar check
Then check the rest of the paragraph
Diglot underlines each issue and lists it beside the text: what is wrong, why, and the fix.
- "researches shows" to "research shows"
- "which use" to "who use" for people
- Fix one by one, or fix all
Paraphrasing inside your draft
Paraphrase without losing your meaning
Select a sentence and get three rewrites in academic, formal or plain English. Compare them beside your original and keep the one that fits.
0 words
Paraphrase my draft
Free plan · No credit card · Opens your text in the editor
- Free plan No credit card
- One editor Grammar, rewrites, translation, citations
- You approve every edit Nothing changes on its own
- Private by default Not used to train public AI models
The tab tax
One window instead of five tabs and five bills
Before: five tabs
- Jenni AIAutocomplete and citations, but no help with a second language.~$20Unlimited, monthly
- DeepL ProTranslates outside your document, so citations and tone are lost.~$8.74from, monthly
- QuillBot PremiumRewrites one paragraph at a time in a separate tab.$19.95monthly
- Grammarly ProFixes the sentence without naming the first-language habit behind it.~$12per month, billed yearly
- ChatGPT PlusRewrites in its own voice and can invent references.$20monthly
If you pay for all five~$81/ month
After: one Diglot document
- Drafting, autocomplete and citations
- Translation inside the document
- Rewrites in five tones
- Grammar that names your first-language habits
- Cowriter with 30+ skills, every edit waiting for you
- Your PDFs, your glossary and a free Authorship Certificate
Spark $19/mo Pro $34/mo
Publicly listed prices: Jenni AI verified 2026-07-18; DeepL, QuillBot and Grammarly verified 2026-04-13; ChatGPT Plus as listed by OpenAI. Prices change, so check each vendor before you buy.
Real fixes from the editor
Same idea, clearer English
Before
The results of the study make evident that the participants which received the training have shown a more big improvement in comparison with the control group.After The findings of the study demonstrate that participants who received the training exhibited a markedly greater improvement than those in the control group.
Academic tone, same meaning
Whole-draft rewrite
Rewrite a whole section and approve every edit
Ask Cowriter to make a draft clearer or more formal. Removed words show in red, new words in green, and nothing changes until you accept.
- Accept all, or review one edit at a time
- Explains what it changed and why
- Points out claims that may need a source
Write in your language
Stuck on a sentence? Write it in your language first
Type the hard part in Spanish, Chinese or any language you think in. Diglot turns it into English right inside your document.
- The rest of your English stays as it is
- Use the translation, or insert it below
- Keeps your terms with a personal glossary
Try it on my text Free plan · No credit card
Cowriter skills
Try a skill on a real paragraph
Cowriter has 30+ skills you call with a slash. Pick a text, pick a skill, then switch between Fluent AI on Free and Native AI on Pro.
Your draft
Many researches shows that students which use social media more than three hours per day have lower grades. In our opinion this is because the constant notifications make difficult to concentrate, so the information is not stay in the memory.
We propose to migrate our reporting to the new platform in Q1. This will reduce costs a lot and the team will be more productive, because the old system is very slow and nobody likes it.
We are very sorry for the delay, it was not our fault but the supplier one. We will try to send you the goods until Friday, please be patient with us and don’t cancel the order.
Cowriter /formalize · Fluent AI
Many studies show that students who use social media for more than three hours per day have lower grades. We believe this is because constant notifications make it difficult to concentrate, so information does not stay in memory.
Example output written for this page to show the difference between AI tiers; real results depend on your text. Fluent AI is on Free, Native AI on Pro.
Sources you can check
Every citation leads back to a real page and a real DOI
Click a marker to see where the claim comes from. Click the uncited claim to find a source for it.
Your paragraph
The Transformer replaced recurrence with attention alone , and pre-trained encoders such as BERT carried the idea to language understanding . Attention mechanisms first improved neural machine translation .
References
- Vaswani, A., Shazeer, N., Parmar, N., Uszkoreit, J., Jones, L., Gomez, A. N., Kaiser, Ł., & Polosukhin, I. (2017). Attention is all you need. arXiv. https://doi.org/10.48550/arXiv.1706.03762
- Devlin, J., Chang, M.-W., Lee, K., & Toutanova, K. (2019). BERT: Pre-training of deep bidirectional transformers for language understanding. Proceedings of NAACL-HLT. https://doi.org/10.18653/v1/N19-1423
Your library · p. 1, abstract
We propose a new simple network architecture, the Transformer, based solely on attention mechanisms, dispensing with recurrence and convolutions entirely.
DOI resolves · 10.48550/arXiv.1706.03762
Example built from real papers and DOIs. In the editor, /library answers from the PDFs you upload, /check-sources looks each DOI up, and /find-source suggests papers for an uncited claim.
Your first language
The slips your first language puts in your English
Choose your language group. A generic checker fixes the sentence; Diglot also names the habit behind it, so it stops coming back.
Thank you for your comprehensionThank you for your understanding
“Comprensión” is a false friend: in English it is “understanding”.
Actually, we use the old systemCurrently, we use the old system
“Actualmente” means “currently”, not “actually”.
I assisted to the conferenceI attended the conference
“Asistir a” means to attend; “assist” means to help.
temperature of samplethe temperature of the sample
Your language has no articles; English needs “the” here.
We discussed about the resultsWe discussed the results
“Обсуждать” takes a preposition; “discuss” does not.
It depends of many factorsIt depends on many factors
A calque of “зависит от”: English uses “depend on”.
Joined Sony 2020I joined Sony in 2020
Your language drops the subject; English needs it.
Yesterday I go to the clientYesterday I went to the client
The verb does not change for tense in Mandarin; English marks the past.
Sorry to bother you, if possible maybe could you send itCould you send it?
Layered politeness reads as unsure in English business writing.
He is having two carsHe has two cars
“Have” for ownership does not take the -ing form.
I am agree with the planI agree with the plan
“Agree” is already a verb; it needs no “am”.
Please do the needfulPlease take care of it
Common in Indian English, unclear to readers elsewhere.
I work here since three yearsI have worked here for three years
“Seit / depuis” becomes “for” with the present perfect.
We have discussed it yesterdayWe discussed it yesterday
A finished time like “yesterday” takes the past simple.
We will eventually postpone the launchWe may postpone the launch
“Eventuell / éventuellement” means “possibly”, not “in the end”.
Typical slips for each language group. Diglot flags them in your own draft and explains the habit behind each one.
Authorship Certificate
Write the whole document here, and keep a record of how you wrote it
The certificate PDF Diglot issues, filled with sample data. A real one carries a QR code and a live verification link.
- Session 1 · Outline and notes22 min
- Session 2 · Drafting, two languages, 4 citations48 min
- Session 3 · Cowriter /formalize and grammar review15 min
- Certificate exported with a verification linkfree
- Example timeline. Writing the whole document in Diglot is what gives the record its weight: a pasted paragraph shows up as a paste.
The difference
Why Diglot instead of a basic rewriter?
| What you need | Diglot | Jenni AI | Grammarly | QuillBot | ChatGPT |
|---|---|---|---|---|---|
| Draft in two languages in one documentQuillBot and ChatGPT translate in a separate tool or chat. | Yes | No | No | Partly | Partly |
| Explains the habit from your first languageChatGPT can explain if you ask, but not in your document. | Yes | No | No | No | Partly |
| Autocomplete and citation stylesDiglot: 10,852 CSL styles. Jenni AI: 10,000+ styles. | Yes | Yes | Partly | Partly | No |
| Answers from your own PDFs, with DOI checksJenni AI chats with PDFs. | Yes | Partly | No | No | Partly |
| 30+ slash skills inside the editorOthers offer a chat box or need written prompts. | Yes | Partly | No | No | Partly |
| Every change waits for your approvalRemoved text in red, new text in green, in place. | Yes | Partly | Partly | No | No |
| Free record of how the document was writtenGrammarly offers an authorship add-on. | Yes | No | Partly | No | No |
Based on public product pages; “Partly” means the job is possible but not inside your document, or only in part.
Pricing
Free is a test drive. Spark and Pro are for real work.
14-day money-back guarantee on your first payment
Free
Fluent AI
$0no card needed
Free forever
A test drive on one real draft.
- Cowriter: 10 messages a day
- Paraphrase: 500 words a day
- Translation: 3,000 words
- 1 Deep Research report a month
- 1 peer review a month
- Recommended
Spark
Smart AI
$15.83/ month
$190 billed yearly, save $38
$19/ month
or $15.83/mo billed yearly
For weekly study and work.
- Cowriter: 1,000 messages a month
- Paraphrase: 30,000 words a month
- Translation: 50,000 words a month
- 5 Deep Research reports a month
- 30 peer reviews a month
Pro
Native AI
$28.33/ month
$340 billed yearly, save $68
$34/ month
or $28.33/mo billed yearly
For papers, theses and publication-ready English.
- Cowriter: 2,000 messages a month
- Paraphrase: 50,000 words a month
- Translation: 100,000 words a month
- 30 Deep Research reports a month
- 150 peer reviews a month
Every plan includes the Authorship Certificate and every export format. Compare all plans
FAQ
Questions, answered
What does the paraphrasing tool do?
Diglot rewrites sentences and paragraphs to improve clarity and fluency while preserving your meaning, citations, and technical terminology. For ESL writers it specifically targets L1-transfer patterns — Korean topic-comment word order, Spanish false cognates, Chinese aspect-marker drops, Russian long subordinate chains — that generic paraphrasers treat as random awkwardness rather than predictable patterns.
How is Diglot different from a generic paraphraser?
Generic paraphrasers rewrite everyone the same way regardless of native language. Diglot is L1-aware — Korean writers get topic-comment alternatives; Spanish writers get false-cognate scrubbing; Chinese writers get aspect-marker mapping. Each rewrite is grounded in contrastive linguistics, not generic synonym substitution. Plus paraphrase, grammar, and translation share one editor instead of three.
Can I use it for academic writing?
Yes — academic paraphrasing is a primary use case. Spark and Pro add an academic mode alongside formal and casual, and every rewrite stays next to your original so you can check that terms, numbers and citations survived. A paraphrased idea still needs its source cited. Especially useful for thesis chapters and grant abstracts where reviewer-acceptable phrasing matters as much as semantic accuracy.
Will it help me sound more natural in English?
Yes — that is the core promise. ESL writers often produce "translated English" that is grammatically correct but feels slightly off to native readers. Diglot identifies the L1-transfer patterns producing that off-ness (preposition errors from German, subjunctive overuse from Spanish, copula drops from Russian, modifier-noun chains from Japanese) and rewrites them into natural English without flattening your authorial voice.
Does it work together with grammar checking and translation?
Yes — paraphrasing, grammar checking, and translation all share the same document context inside Diglot. Translate a paragraph from your L1, run a grammar pass, and paraphrase awkward sentences before publishing — without copy-pasting between three browser tabs. Per-writer translation memory keeps technical terms consistent across the whole workflow.
Is the paraphrasing tool free?
Yes — the free plan includes the Standard paraphrase mode within a daily word quota. Spark ($19/month) and Pro ($34/month) unlock every paraphrase mode, more suggestions per request, higher monthly word quotas, and premium model tiers for more nuanced rewrites.
Paraphrase your next paragraph
Paste it and compare three versions in seconds.
Start for freeFree plan · No credit card required
