Epsylo vs DeepL
DeepL is a translator built to produce fluent text fast: more than 100 languages, document translation, glossaries, a formal and informal tone, and apps and add-ins for desktop, phone, browser and office software. Epsylo is a translator built to be understood: in 97 languages, every translation comes back broken down word by word, each word colored by its grammatical role and explained, with a politeness dial and per-word emphasis that rewrite the sentence. Choose DeepL to get a document or an email translated and move on. Choose Epsylo when you are learning the language and want to know why the translation says what it says.
Updated 20 October 2026 · Facts about other products checked 20 October 2026
At a glance
| Epsylo | DeepL | |
|---|---|---|
| What it is | A translator that explains the grammar of every translation | A translator for fluent output, documents and work |
| Made for | People learning a language | People who need the translated text |
| Languages | 97 | More than 100 |
| Word-by-word breakdown | Every word colored by grammatical role, with an explanation, a dictionary entry and alternatives | Alternative wordings, and a dictionary for some language pairs |
| Sentence structure | Syntax cards and a dependency tree for every translation | Not a feature |
| Register | A four-step politeness dial, from blunt to honorific | A formal or informal tone, in the languages that support it |
| Emphasis | Six kinds of emphasis, down to a single word | Not a feature |
| Documents | PDFs and images, paragraph by paragraph, with every word open to explanation | Whole files translated with their layout |
| Glossaries | Not a feature | Yes |
| Learning tools | A guided course, a vocabulary bank with spaced review, writing critique, a tutor | Not a feature; DeepL Write improves your writing |
| Platforms | Web app, on any device with a browser | Web, desktop and mobile apps, browser extensions, office add-ins |
| Price | Free plan with 20 translations a month; paid plans on the pricing page | Free with limits; DeepL Pro is a subscription |
Two different jobs
DeepL is built around the output. You paste text or drop in a file, and you get back a translation that reads as if it had been written in that language. Everything around it serves that: glossaries so a company's terms come out the same every time, a formal or informal tone, document translation that keeps the layout, and add-ins that bring it into the software where the text is written.
Epsylo is built around the reader. The translation is the start, not the end: every word of it is a segment colored by the job it does in the sentence, and each one opens to say why it is there, what its dictionary form is, and what else could have stood in its place. Syntax cards name the constructions the sentence uses, and a dependency tree shows what attaches to what.
Both let you change how a sentence sounds. DeepL switches between formal and informal. Epsylo has a politeness dial with four steps, from blunt to honorific, and an emphasis control with six flavors that you can aim at a single word; the breakdown then shows what changed and why.
Which one should you use?
- You need a contract, a manual or a slide deck translated with its formatting: DeepL.
- Your team needs the same terms translated the same way every time: DeepL, with a glossary.
- You want translation inside Word, Outlook or your browser as you work: DeepL.
- You are learning the language and want to understand the sentence, not only read it: Epsylo.
- You want to see how a sentence changes from casual to formal, or what stressing one word does to it: Epsylo.
- You want to save the words you meet and review them later: Epsylo, whose vocabulary bank schedules them for spaced review.
They answer different questions. DeepL answers "what does this say in my language?". Epsylo answers that too, and then "why is it said that way?".
What Epsylo adds to a translation
Take a Spanish sentence that any good translator gets right:
- Si hubiera sabido que venías, te habría esperado.If I had known you were coming, I would have waited for you.
A translator gives you the English line. Epsylo gives you the line and the reasons: "hubiera sabido" is the pluperfect subjunctive, which Spanish uses after "si" for a condition that did not happen; "habría esperado" is the conditional perfect, the result that did not happen either; "venías" is the imperfect, because the coming was in progress; and "te" is the object pronoun, placed before the verb.
Questions
- Is Epsylo an alternative to DeepL?
- For learning a language, yes: Epsylo translates and explains the grammar of every translation, where DeepL gives you the translation. For translating documents with their layout, or using a glossary across a team, DeepL remains the more direct tool.
- Is Epsylo more accurate than DeepL?
- Both aim for a translation a native speaker would write. The difference is what comes with it: Epsylo shows every word's role and why it was chosen, so you can check the translation yourself instead of taking it on trust.
- Can Epsylo translate documents?
- Epsylo translates PDFs and images paragraph by paragraph, keeping each paragraph beside its translation, so you can open any word or passage for an explanation. It does not rebuild the file with its layout the way DeepL does.
- Is Epsylo free?
- Yes, within a monthly limit: a free account includes 20 translations a month with the full breakdown, in every language.
Sources
What this page says about other products is taken from their own store listings and website, as they read on 20 October 2026. Products change; if something here is out of date, write to hello@epsylo.app and we will correct it.
Try it on your own sentence
Epsylo translates between 97 languages and explains every word of the translation. A free account includes 20 translations a month.