Ship localization without bugs — automated QA and review.
Humlens catches placeholder breaks, missing strings, brand term violations, and formatting errors before they reach production — with human review stages and approval gates to match your release process.
Automated QA checks that run on every translation.
Flags any translation where dynamic placeholders ({name}, %s, {{count}}) are missing, duplicated, or malformed.
Cross-references each translation against your glossary. Flags translations that use incorrect product names or prohibited terms.
Validates that translated strings stay within configured character limits — especially important for UI labels, buttons, and mobile interfaces.
Identifies keys that have been created in the source but not yet translated in any target language, so nothing ships as blank.
Catches formatting differences between source and translation — punctuation, capitalization style, and HTML tag structure.
When a source string changes, previously approved translations are flagged for re-review so stale content never ships.
Human review and approval, built in.
Frequently asked questions.
- What is localization QA?
- Localization QA (quality assurance) is the process of verifying that translated content is accurate, consistent, and production-ready before it ships. It includes automated checks for placeholder integrity, line length, formatting, and brand term consistency, as well as human review stages with approval gates that prevent unverified content from reaching users.
- What are common localization bugs that QA should catch?
- Common localization bugs include: broken or missing placeholders ({name} replaced with literal text or dropped entirely), strings that are too long for the UI component they appear in, empty translations shipped as blank text, brand or product names mistranslated or transliterated incorrectly, HTML tags broken or duplicated in translation, and pluralization errors where the wrong word form appears.
- What automated checks does Humlens run on translations?
- Humlens automatically checks for: missing or malformed placeholders ({name}, %s, {{count}}), strings exceeding line-length limits, empty translated strings, brand term violations, HTML tag structure mismatches, punctuation inconsistencies, and source-change regressions where a previously approved translation is now out of date.
- What is a placeholder in localization and why does it matter?
- A placeholder is a variable in a localization string that gets replaced at runtime with a dynamic value — for example, "Welcome, {name}!" where {name} is replaced with the user's actual name. If a translator accidentally deletes or changes a placeholder during translation, the application will display a broken string or crash. Humlens's placeholder validation catches this before deployment.
- What is an approval gate in localization?
- An approval gate is a checkpoint that prevents translated content from being deployed or exported until it has been explicitly approved by a designated reviewer. Humlens supports configurable approval stages per project and per language, so you can require one or multiple approvals before any string enters the deployed build.
- What is an audit trail in localization and why does it matter?
- An audit trail records who changed or approved each string, when the change was made, and what the previous value was. For compliance-sensitive industries (legal, medical, financial), an audit trail provides accountability. For product teams, it makes it easy to investigate when and how a broken translation was introduced.
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Automated QA + human review. Free plan available.