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Writing in a second language, done right

Writing Assistant for Non-Native English Speakers

Diglot is built for people who think in one language and write in English. You draft bilingually, fix the lines that give you away as non-native — the false cognate, the dropped article, the translated rhythm — and get grammar feedback that points back to your first language, all in one editor instead of a translator, a grammar checker, and a rewriter open in three tabs.

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*No credit card required

Bilingual Context Kept Grammar and wording review Free process record

Illustrative editor preview with sample text. Create an account to work on your own draft.

Writing in a second language, done right

Why non-native writers need more than a grammar checker

The trouble usually isn’t typos — it’s that your English wears the fingerprint of your first language. A Spanish speaker writes “actually” meaning “currently.” A Korean or Russian writer leaves out articles the language never had. A Chinese writer lets tense go flat. The sentences are grammatical and still read translated. Generic checkers flag the surface and miss the cause. Diglot reads these as L1-transfer patterns and explains the fix, so your English stops sounding secondhand.

Step 1

Stop reading as translated

Diglot goes after the tells — literal calques, collocations no native would pick, word order carried over from your language — and rewrites them into English that sounds native while your meaning stays put.

Step 2

Corrections that stick

Each fix names the habit from your first language that caused it — the Spanish false friend, the missing English article — so you start catching it yourself and your first drafts get cleaner.

Step 3

One editor for the whole loop

Translate, rewrite, and check grammar in a single document. Nothing gets copy-pasted into DeepL or QuillBot and pasted back, so the context never breaks.

Illustrative editing examples

Compare possible revisions to an English draft

These prepared examples illustrate possible edits, not live results. You decide which wording fits your intended meaning.

Before: Literal L1 Translation 46 words · Awkward & Translation-Flavored

According to my point of view, the experimental data what we received yesterday is doing a great improvement to our study because it permits us to explain the phenomenon completely without any doubt.

⚠️ Unidiomatic opening ("According to my point of view") ⚠️ Literal relative pronoun error ("what we received") ⚠️ False friend "without any doubt" (Romance L1 transfer)
After: Diglot Natural English 31 words · Alternative phrasing

In our assessment, yesterday’s experimental findings substantially advance the study by providing empirical validation for the observed phenomenon without ambiguity.

✓ Idiomatic academic/professional phrasing ✓ Natural syntax preserving author’s exact intent ✓ Zero literal translation residue
Core Capabilities

Built around natural bilingual thinking habits

Review English phrasing and translation while keeping your draft in view.

01 Grammar & Clarity

Review the text you wrote

Start with your own paragraph, essay, or report. Review grammar and readability suggestions beside the draft, then decide which changes make your meaning clearer.

  • Check grammar and sentence-level wording
  • Review readability and wordiness in context
  • Keep or reject suggestions as you revise
Your draft · Your final decisions
Illustrative preview with sample text and metrics. Results depend on your document.
02 Translation

Compare a passage with your source

Translate a difficult passage without leaving your document. Check the suggested English against your source, especially names, numbers, and specialist terms.

  • Work with source text and translation together
  • Choose wording that fits your reader
  • Review the meaning before using a translation
Translation beside your draft
Illustrative translation preview. A displayed score is not a guarantee of accuracy.
03 Wording & Revision

Try another way to phrase your idea

Ask for a shorter sentence or a different tone, and compare the suggestion with what you wrote. AI suggestions can change meaning or introduce errors; you choose what belongs in the final draft.

  • Explore alternative wording in the editor
  • Check that facts and qualifications remain intact
  • Keep the wording that fits your purpose
Review before accepting a rewrite
Illustrative preview of AI assistance in the editor.
04 Writing Process Record Included on the Free plan

Keep a record as your next draft develops

Enable authorship recording before writing in the Diglot web editor. Export a signed record of the activity it captures, with a verification link you can share.

  • Records captured writing activity; it cannot reconstruct earlier work
  • Certificate exports are included on every plan
  • Process evidence, not proof of identity, authorship, or originality
No guarantee of detector results or institutional acceptance
Illustrative example · Sample data

Diglot Writing Process Record

SAMPLE · No certificate issued

Example sessions 6
Illustrative data

Example research draft

Sample Writer Example account
Observation Window 6 days (May 12 – May 18, 2026)
Length & Scope 1,840 words · 12,450 characters
Content Hash (SHA-256) 7f83b16524fa9a01…c29b
In-App Keystroke & Telemetry Measurements Continuous Capture
Active Writing Time Sustained focus in editor
4h 38m
Direct Keystrokes Manual typing recorded
12,840 chars (96%)
Typing Velocity Recorded typing activity
215 cpm
Editing Sessions Iterative draft evolution
6 sessions
Accepted AI Assistance Disclosed grammar/vocabulary
12%
External Pastes Unrecorded bulk insertions
0 pastes (0%)

Illustrative process evidence

Issued certificates support ed25519 signature checks · Public key at diglot.ai/.well-known/diglot-pubkey.json

Sample preview — no public verification link
Illustrative example with sample data. Records activity captured in Diglot; not proof of authorship or originality. Recording must be enabled before writing.
Learn what a writing process record can and cannot establish on the Authorship Certificate page.
The Editing Flow

One connected workflow from raw draft to final deliverable

Move from bilingual rough ideas to polished English in one calm flow instead of stitching together separate tools.

Step 1

Think in your language first

Start from native-language thoughts or documents instead of forcing English from the first sentence.

Step 2

Produce English in the same editor

Translate and draft together, so the move from your language into English never leaves the document.

Step 3

Fix what sounds translated

Diglot targets literal calques, awkward collocations, and translated rhythm, rewriting them into natural English while keeping your meaning.

Step 4

Learn the pattern, not just the fix

Each correction carries the L1 reason behind it, so your first drafts get cleaner over time.

Target Audiences

Built for people who write across languages

Diglot works best when English is your delivery language, but not always your thinking language.

Essays, assignments, and academic tone

International students

Move from rough documents to cleaner English submissions with structure, paraphrasing, and grammar review in one place.

Emails, reports, and client-facing writing

Multilingual professionals

Write faster for work without sounding translated. Diglot helps you refine tone, clarity, and confidence before you hit send.

Content, landing pages, and articles

Bilingual creators

Turn ideas that start in your native language into natural English copy without bouncing between translation and rewrite tools.

Privacy & Linguistic Protection

Data confidentiality & linguistic integrity

Your personal notes, professional drafts, and bilingual writings are private by design.

Privacy First

Understand how your text is handled

Review the Privacy Policy for how Diglot and its service providers process your text, and use only material you are permitted to share.

Bilingual Design

Engineered for bilingual cognitive flow

Compare grammar, translation, and rewriting suggestions beside your draft. Review each change against the meaning you intended.

Editorial Review

Published by Diglot

Page updated July 18, 2026. AI suggestions need your review before use.

Frequently asked questions

Everything you need to know before getting started.

Is Diglot made for non-native English speakers?

Yes — that’s precisely who it’s for. Diglot treats non-native English as carrying predictable patterns from your first language and corrects them with the reason attached, rather than flagging them like random slips. It also keeps translation, rewriting, and grammar in one editor, which is the workflow non-native writers actually run.

How is this different from Grammarly?

Grammarly is aimed at people who already think in English and want it tidier. Diglot is aimed at people who think in another language first. It supports bilingual drafting, ties each correction back to your first language, and hunts specifically for translated-sounding phrasing rather than surface grammar alone. If you’re a native English writer, Grammarly is fine; if you’re not, Diglot fits the actual problem better.

Can it make my English sound more natural?

Yes — it’s one of the main jobs. Diglot rewrites literal translations, off collocations, and translated rhythm into natural English and tells you why the original read wrong. Because the feedback is grounded in your L1 rather than generic rules, your first drafts keep getting closer over time.

Which first languages does Diglot support?

Korean, Chinese, Japanese, Spanish, Russian, and Arabic get the deepest treatment, with contrastive grammar data behind the explanations; fourteen more languages have partial coverage. Any language pair works for drafting and translation — the L1-aware detail is simply richest for those six, and the list keeps growing.

Is Diglot free to use?

Yes. A free plan covers bilingual editing, grammar, translation, and paraphrasing. Spark ($19/mo) and Pro ($34/mo) raise the quotas and add premium models. The Authorship Certificate is free on every plan.

Write in your language,
publish in English

Move from rough bilingual drafts to clearer English in one connected writing workflow.

Try Diglot free

*No credit card required

Writing English as a non-native speaker isn’t mostly a grammar problem — it’s a transfer problem. Your English inherits the shape of your first language. A Korean or Russian writer drops articles the language never used. ” A Chinese writer lets tense flatten out. Everyone produces the translated rhythm that makes prose feel secondhand. Generic tools flag the symptom on the surface and skip the cause, so you fix the same thing paper after paper. Diglot is built for non-native writers from the ground up.

It lets you draft in your first language and produce the English in the same editor, it targets the exact phrasing that reads translated, and it attaches the reason your L1 caused each error — so the feedback teaches rather than just marks. Translation, rewriting, and grammar share one document, so you’re not copy-pasting between a translator, a grammar checker, and a paraphraser and losing your place each time. What comes out reads as your own voice in English, not a translation of it.