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LangSync vs POEditor · comparison

Meet LangSync — the better alternative to POEditor for software localization

Pay-as-you-go pricing, AI translation guided by your prompts and glossary, and a CLI-first workflow that keeps your repo in lockstep with the dashboard.

Start LangSync free See LangSync overview →
First 1,000 strings free Built-in POEditor migration No annual contract
At a glance
LangSync
POEditor
Pricing model
Pay-as-you-go per 1,000 strings
Plan tiers by string count
AI translation
LLM with your custom prompts
Google / DeepL / Azure MT (char-pack billing)
First-party CLI
Source language flexibility
Per-developer override
One per project
POEditor import built-in

Verified June 2, 2026 against POEditor's public product and pricing pages. Spot an inaccuracy? Email [email protected] — we'll update within two business days.

Side by side

LangSync vs POEditor, feature by feature

Compiled from public product pages and pricing tiers as of mid-2026. POEditor changes pricing periodically — check their site for the current numbers if a few dollars matter to your decision.

Section Feature LangSync POEditor
Pricing model Billing shape Pay-as-you-go — billed per 1,000 translated strings stored, price drops at higher volumes. No plan tiers, no monthly commit. Plan tiers by string count. Each tier locks a monthly price; you upgrade plan when you cross the next string-count line.
Free tier First 1,000 strings free, no credit card. Free plan covers up to 1,000 strings; paid plans start above that.
What counts toward your limit Only non-empty translation cells. Empty cells (a key with no translation in a target language) are not billed. Every term plus every translation row. A 1,000-term project in 3 languages consumes 4,000 strings against the plan limit, even before content fills them in.
Commit No contract, no per-seat pricing. Monthly, 6-monthly (-10%), or yearly (-15%). Unlimited contributors on every plan, no per-seat charge.
Translation engine AI translation Built on a modern LLM with your custom prompt per namespace — tone, audience, formality, product rules. Glossary terms feed in on every call. Connects to Google Translate, DeepL, and Azure AI Translator for machine translation. Routed through POEditor's own keys with a 10,000-character/month free quota, then paid character packs. Only Enterprise can bring its own provider API keys.
Glossary / terms First-class. Per-language target translations + optional notes. AI sees the glossary on every translation. Glossary and translation memory both supported as separate features.
Custom prompt per namespace Yes — written in plain language, set per namespace or per user, managed via the dashboard or API. Not a native concept. Tone/style is controlled by the MT provider you pick.
Source language flexibility Per-developer override — a Czech dev can keep cs.json as source while the team-wide default stays en-US. See the workflow. Project has a single fixed source language (Default Reference Language) set by owner/admin. Contributors can locally swap their displayed reference; canonical source stays fixed.
File formats Native formats i18n JSON is first-class. CSV, JSON, XLSX accepted for one-shot import. Very wide — .po, .pot, .properties, .strings, .xliff, .resx, .resw, .ts, .ini, .csv, .xlsx, .xml, JSON, and more.
Export REST API returns i18n JSON. CLI keeps i18n/<lang>.json on disk in lockstep with the server. API + dashboard export in every supported format.
Developer workflow CLI First-class. norcube langsync init + norcube langsync sync keep your repo and server aligned. Resumable across crashes. See the CLI page. No first-party CLI. Community wrappers around the REST API exist.
REST API Yes — built for build-pipeline pulls. Yes — extensive, well-documented.
Native integrations GitHub via the CLI; webhooks for arbitrary CI. Native GitHub, GitLab, Bitbucket, Azure DevOps, Slack, Microsoft Teams, Webhooks, WordPress, Figma.
Team & translation Crowdsourcing / translator marketplace Not built in. The AI is the primary translator; humans review and edit. Yes — order professional human translations from inside the dashboard, fulfilled by integrated third-party LSPs (Gengo and TextMaster). Plus public-project crowdsourcing with open contributor sign-up.
Team collaboration Organization-scoped namespaces, per-user prompts and tokens. Two-tier model: Organizations sit above Projects. Roles: Owner, Admin, Contributor, Organization Manager. Shared glossaries and integrations at the org level.
Security & hosting Hosting EU only (AWS Frankfurt). GDPR-aligned by default. See /security/ and /dpa/. EU data centres (region not publicly specified). No published DPA on the public site at time of writing.
Data training Your strings are never used to train models. AI calls are inference-only. No explicit "no-training" commitment in the privacy policy. POEditor advises redacting PII from strings before upload. MT providers (Google, DeepL, Azure) have their own training policies — review each.
Migration Migrating from the other Built-in POEditor importer. Paste a read-only POEditor API key, click migrate — terms, translations, and languages move across in one job. (Glossary and translation memory live behind POEditor's dashboard only and cannot be exported via API; budget for re-creating those by hand.) See the Smartsupp case study for the on-the-other-side numbers. No first-party LangSync importer. You would export from LangSync (JSON) and re-import into POEditor.

Verified June 2, 2026 against POEditor's public product and pricing pages. Spot an inaccuracy? Email [email protected] — we'll update within two business days.

POEditor info verified against poeditor.com pricing, features, integrations, KB articles, and API docs. The LangSync side is sourced from this codebase. If you find a row that is wrong, email [email protected].

Be honest about it

When POEditor is the right call

We are obviously biased about LangSync, but POEditor is a mature product with real strengths. If any of these are non-negotiable for your team, do not switch.

Stay with POEditor

You need wide file-format support

If your stack ships .po, .xliff, .resx, .strings, .arb (Flutter), .xcstrings (Apple String Catalog), or any combination of older i18n formats, POEditor has them all natively (20+ formats). LangSync focuses on i18n JSON; importing other formats is a one-shot, not a continuous round-trip.

Stay with POEditor

You need a native git-provider integration

POEditor's native GitLab / Bitbucket / Azure DevOps integrations are deeper than ours. We cover GitHub via the CLI, but if your team standardised on another provider and the dashboard-side automation matters, POEditor wins.

Stay with POEditor

You order professional translations

POEditor's in-product translation orders route to third-party LSPs (Gengo and TextMaster) and let you order professional human translations without leaving the dashboard. LangSync uses AI as the primary translator with human review on top; if you need a paid-translator workflow native to the product, POEditor is the fit.

FAQ

Questions teams ask

How much will I actually save switching from POEditor to LangSync?
It depends on your string count and language mix, but the consistent pattern is roughly 30–50% lower spend at the volumes where POEditor pushes you to its higher plans (typically 10k+ strings). The Smartsupp case study covers one real migration in detail.
Will the AI translations be as good as Google / DeepL / Azure via POEditor?
Different shape, not strictly better or worse. POEditor routes you to a standard MT provider — Google Translate, DeepL, or Azure AI Translator — billed by character pack on top of your plan. LangSync runs a modern LLM with your custom prompt and glossary on every call. For software UI strings with tone/voice rules, the LangSync output is usually closer to your style guide; for very long-form prose with no context, classic MT can be tighter. Both let you review and edit before publishing.
How long does migrating from POEditor take?
For most teams, an afternoon. Generate a read-only API key in POEditor, paste it into LangSync, click migrate. The job imports every term, translation, and language into a new namespace; you review the result before pointing your build pipeline at the new API endpoint.
Do I lose translation history when I migrate?
The current value of every translation comes across. Historical revision data, glossary entries, and translation memory do not — POEditor stores those server-side and exposes none of them via the API. If audit trail or glossary continuity matters, keep POEditor read-only for 30 days after migration as a fallback and budget for re-creating the glossary by hand.
What if I want to switch back?
LangSync exports every namespace as standard i18n JSON via the REST API; POEditor imports JSON natively. The data is yours either way. No lock-in.
Ready when you are

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First 1,000 strings free, no credit card. Migration from POEditor is built in.

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Free tier 1,000 strings, no card
POEditor import Built in
EU-hosted AWS Frankfurt
No commit Pay-as-you-go
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