Software, manuals, and APIs don't translate themselves—poor technical translation turns your global launch into a compliance nightmare. If your product needs to work (and be understood) across languages, you need translators who speak both code-culture and fluent target language, not just someone with a dictionary.
Why Technical Translation Differs from General Translation
Technical translation isn't literary translation with jargon swapped in. Your software strings, API documentation, and hardware manuals require translators who understand your actual domain—whether that's fintech, medical devices, or SaaS infrastructure. A general translator might render "token" as "coin" in Spanish when you meant "authentication token." A technical specialist knows the difference and flags context issues before they break your product.
The stakes are measurable: mistranslated error messages confuse users, wrong terminology in compliance docs creates legal liability, and inconsistent API parameter names across language versions kill developer adoption.
What Technical Translation Covers
Software localization includes UI strings, in-app notifications, help text, and tooltips. Turnaround: 1–3 weeks for 10,000 words, depending on language pairs and revision rounds. Typical cost: $0.12–$0.25 per word for specialized technical translation.
Technical manuals and documentation covers user guides, system administration guides, and troubleshooting docs. These demand precision and consistency—you'll want a glossary built as part of the project. Budget 2–4 weeks and expect the same per-word rates or slightly higher if you need layout or DTP work included.
API documentation is trickier than it looks. Code examples shouldn't be translated; parameter names, descriptions, and explanations should be. Translators need to understand REST/GraphQL basics and avoid over-localizing technical prose. Expect 1–2 weeks for typical API docs (50–200 endpoints), $800–$3,000 per language.
Finding the Right Provider
Start by identifying your languages and scope. Are you translating into 3 languages or 15? Do you need simultaneous launches or staggered releases? Do you have existing glossaries or style guides?
Look for providers who:
- Have certified translators in your domain (software engineers or technical writers, not just language experts)
- Offer translation memory tools (so repeated terms stay consistent across projects)
- Provide glossary management and can version your terminology database
- Include review rounds with native speakers who've actually used the software
- Support your specific file formats (XLIFF, JSON, YAML, Markdown, or whatever your CMS/localization platform uses)
Don't hire based on hourly rate alone. A cheaper translator might miss context, introduce bugs in code samples, or skip consistency checks that cost you customer support tickets down the line.
Timelines and Budget Reality
A 50,000-word software product across 5 languages typically takes 4–8 weeks from kickoff to final delivery, not counting your internal review time. Budget $6,000–$15,000 depending on language pairs, complexity, and whether you need ongoing maintenance translations.
Recurring costs matter: every update, feature launch, or UI change needs retranslation. Build a 20–30% buffer into ongoing budgets for untranslated strings that inevitably appear mid-sprint.
Common Pitfalls to Avoid
Over-relying on machine translation. Neural MT (Google Translate, DeepL) works for rough drafts and internal documents, not customer-facing software. Always use it as a starting point only, then have humans edit and verify.
Forgetting time zones and workflow. If you're translating into 12 languages, staggering across regions (Europe, Asia, Americas) can keep your timeline realistic. Parallel workflows cost more upfront but avoid bottlenecks.
Skipping the glossary. Spend 1–2 weeks building a master glossary with your developers and UX team before translation starts. It cuts revision rounds by half.
Comparing Providers
Mercoly helps you find, compare, and hire trusted translation services providers in one place, so you can vet credentials, read reviews, and compare quotes without the sourcing legwork.
Request test quotes from 2–3 providers using a small sample (500–1,000 words from your actual product). Compare not just price, but turnaround time, revision policy, and whether they ask clarifying questions about your domain—providers who ask questions usually deliver better results.
Frequently Asked Questions
Q: Can I use machine translation for internal API docs? Machine translation is fine for internal-only docs, but if any customer or developer sees it, hire a human translator. The reputational cost of broken English in your docs outweighs the savings.
Q: How do I ensure terminology consistency across 10 languages? Use a centralized translation memory (TM) tool and a master glossary that all translators update. Most translation platforms (Crowdin, Phrase, Lokalise) enforce this automatically.
Q: What's the typical revision process? Expect 1–2 revision rounds: you review and flag issues, the translator clarifies or adjusts, then a final native-speaker QA pass. Build this into timelines from the start.
Start comparing technical translation providers today and get your global launch on track.