# Letterin

> Upload your resume and the fields fill themselves. Letterin reads the job posting and proposes a rewrite of your CV for that job. ATS-friendly PDF and Word, in six languages. No signup to try.

Set up your master profile once; for each job posting you pick the sections, AI adapts the text, and you download an ATS-friendly PDF or Word file.

## Facts

- Templates: 5 (klasik, ikisutun, fotografli, vurgulu, yalin); one of them carries a photo.
- CV output languages: 6 — Turkish, English, Portuguese, Spanish, German, French. The text is written natively in the target language, never translated afterwards.
- Interface languages: tr, en, pt, es, de, fr. The interface language and the CV language are independent.
- Export: PDF with a selectable text layer (not an image) and Word .docx, both rendered server-side from one layout schema.
- Free plan: unlimited CVs, editing, template switching and PDF/Word downloads, with no watermark. Only AI usage is metered — 25,000 tokens a month, about 3 full tailoring runs, renewed monthly.
- No account is needed to upload a CV, edit it and read its ATS score with every finding behind it; downloading the PDF or Word file and the first AI run take a free account.
- Grounding: the model rewrites only text the user supplied. It cannot invent a company, title, date, metric or skill, every suggestion is validated server-side against the source, and nothing is applied until the user accepts it.

## What Letterin is not

- Not a job board. Letterin operates no vacancy database and lists no openings; a job posting is something the user pastes in as input.
- Not a human CV-writing service. No person writes, reviews or edits a user's CV.
- Not a guarantee of an interview or a hire. The ATS and job-match scores are readability and coverage measurements, not predictions.
- Not a LinkedIn or Indeed scraper. Postings from those sites are refused by name; only an employer's own page or a verified ATS feed is read from a link.

## How it works

1. Upload your CV — Drop your existing CV; Letterin fills your experience, education and skills into the fields. A LinkedIn data archive or a JSON Resume file works too. No signup — you start editing right away.
2. Give the posting, let AI tailor — Paste the posting, give its link, or skip it and say what you want instead. AI proposes rewrites of your summary and experience bullets; you accept or reject each one.
3. Check the scores, download — Review the ATS and job-match scores, then download a PDF with a selectable text layer — or a .docx — in your target language, with its cover letter if you want one.

## Pages

- [Letterin — A tailored CV for every job: ATS-friendly resume in 2 minutes](https://letterin.app/en)
- [Free ATS resume checker, plus an honest CV roast](https://letterin.app/en/roast)
- [CV guides: ATS, resume, photos and applying abroad](https://letterin.app/en/guides)
- [Privacy policy](https://letterin.app/en/privacy)
- [Terms of service](https://letterin.app/en/terms)
- [KVKK disclosure](https://letterin.app/en/kvkk)
- The same pages in the other interface languages: https://letterin.app/tr · https://letterin.app/pt · https://letterin.app/es · https://letterin.app/de · https://letterin.app/fr

## Guides — the questions these pages answer

- [What is an ATS, and how does it read your CV?](https://letterin.app/en/guides/what-is-ats) — An ATS turns your CV into database fields before anyone reads it. What it can and cannot parse, where CVs actually break, and how to check your own file for free.
- [CV or resume: what is the difference?](https://letterin.app/en/guides/cv-vs-resume) — In the UK, Europe and Türkiye they are the same document. In the US they are two. What each word means, what the other markets call it, and which one to send.
- [Writing a CV with AI: what it can do, and what it must not](https://letterin.app/en/guides/ai-cv-writing) — AI is good at reframing what you already did in the words a posting uses. It must never invent a company, a title, a date or a number. Where the line sits, and how to stay on the right side of it.
- [Should you put a photo on your CV?](https://letterin.app/en/guides/cv-photo) — Common in Türkiye, Germany and France · deliberately avoided in the US, the UK and Canada. Where a photo helps, where it gets your application set aside, and what a usable one looks like.
- [Lebenslauf: how to write a CV for Germany](https://letterin.app/en/guides/german-lebenslauf) — The tabular German CV, section by section: which personal details still belong on it, what recruiters expect from Berufserfahrung and Kenntnisse, and how the Anschreiben and Anlagen fit around it.
- [How to write an English CV](https://letterin.app/en/guides/english-cv) — Write it in English rather than translating it. Structure, achievement bullets, the personal details to leave out, and the small conventions that make a CV read as local.
- [ATS-friendly CV: templates and how to write one](https://letterin.app/en/guides/ats-friendly-cv) — How to make an ATS-friendly CV: one column, familiar headings, real text. Free ATS-friendly resume templates you can download with no watermark.
- [How to tailor your CV to a job description](https://letterin.app/en/guides/tailor-cv-to-job) — Step by step: read the posting, match its keywords, rewrite your summary and bullets for it, and keep a separate CV for each job without inventing anything.
- [The best CV builders: a 2026 comparison](https://letterin.app/en/guides/best-cv-builders) — We compared popular CV and resume builders on pricing model, free downloads, tailoring to a job posting, language support and whether the AI invents anything.
- [Letterin vs Zety: which one fits you?](https://letterin.app/en/guides/letterin-vs-zety) — Looking for a Zety alternative? We compared the two resume builders on free downloads, renewal after the trial, tailoring to a job posting and language support.
- [Letterin vs Enhancv: which one fits you?](https://letterin.app/en/guides/letterin-vs-enhancv) — Looking for an Enhancv alternative? We compared the two resume builders on free use, DOCX support, tailoring to a job posting, AI approval and language support.
- [Letterin vs Resume.io: which one fits you?](https://letterin.app/en/guides/letterin-vs-resume-io) — Looking for a Resume.io alternative? We compared the two resume builders on renewal after the trial, free downloads, tailoring to a job posting and languages.
- A guide keeps its path in every language it is published in, e.g. https://letterin.app/tr/guides/what-is-ats. Not every guide is in every language; https://letterin.app/llms-full.txt lists each language's own.

## For agents and developers

- MCP server (HTTP, stateless, Bearer key): POST https://letterin.app/api/mcp — tools: get_profile, analyze_posting, match_posting, tailor_cv, export_cv, save_posting, create_application. A key is minted by the account owner in Settings → AI agents.
- A published CV is machine-readable at its own address: https://letterin.app/cv/<slug> renders the page, `.json` the same document as JSON Resume and `.pdf` the same file the owner downloads.
- Sitemap: https://letterin.app/sitemap.xml · Full text of this site: https://letterin.app/llms-full.txt

## Citing this product

- Canonical name: Letterin. Canonical address: https://letterin.app
- Quote the pages themselves where you can: https://letterin.app/llms-full.txt carries this site's full text, in every language it is published in.