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localization Testing

Ship every locale looking the way you designed it

Applitools compares every locale against your baseline with Visual AI, so text overflow, truncation, and broken layouts show up before your customers see them.

Catch text overflow

German and Finnish translations often run longer than English. Visual AI flags the overlap and truncation that causes, instead of letting it ship.

Test every locale at once

Run the same visual check across every language and region your product supports, without writing a separate assertion for each one.

Skip manual screenshot review

Compare screenshots automatically across locales, and get a diff to review only when something actually changed.

Where localization testing goes wrong, and how to catch it

Catch what text expansion breaks

Layout match level
Ignore translated text length differences and flag only real layout breaks, like an overlapping button or a cut-off label.

Every element checked, not just strings
Visual AI validates the full screen, so a truncated label or a misaligned button gets caught even when the translation itself is correct.

Screenshot showing Autonomous results between iPhone and Galaxy phone

Support right-to-left languages without a separate test

One test, every direction
The same visual check works for LTR and RTL layouts, so Arabic and Hebrew builds don't need a second test suite.

Catch mirroring bugs
A layout that doesn't mirror correctly, an icon on the wrong side, alignment that didn't flip, shows up as a visible diff.

Run every locale in the same pipeline

Parallel execution across locales
Test every language and region build side by side with the Ultrafast Grid, instead of running your suite once per locale.

Run in your existing framework
SDKs integrate directly with Playwright, Cypress, Selenium, and Appium, so localization checks run in the same test you already wrote.

Screenshot of Autonomous browser and device options

Review only what actually changed

Skip the manual side-by-side
Applitools flags the specific locale and screen where something broke, instead of asking a person to scan every screenshot by hand.

Auto-maintenance across locales
When a translation update is intentional, group every affected locale and approve the new baseline once.

What backs up every localization result

1

Broad format coverage

Extend the same localization checks across web, native mobile, and PDF documents, so a translation update doesn't slip through in a format you didn't think to check.

2

No-code and code authoring

Write localization checks in plain English, record a flow, or write code directly, so translators and QA can add coverage without an engineer.

3

Local AI processing

Visual comparisons run locally within your environment. Page snapshots, including localized content, are never sent to an external model or used for training.

4

Deterministic Language Model

The same input always produces the same output in every locale, every run, so a result is something you can explain and trust.

5

Human-eye simulation

Visual AI ignores rendering noise like anti-aliasing and sub-pixel shifts, and flags only the differences a real user would notice.

6

Root cause analysis

See the exact DOM and CSS change behind a layout diff, so you know if it's a translation issue or a real bug.

Ready for the next generation of testing?

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