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Freedom251 › Blog › Chromatic

How to Test Hindi and Other Indian Language Layouts in Chromatic

By Freedom251 Team · · 5 min read

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Test Indian-language layouts by rendering realistic translations in Storybook, capturing each locale and relevant viewport with Chromatic Modes, and checking the snapshots for font failures, wrapping, clipping, overflow, and component-height changes. Make sure the font covers the actual script and has loaded before capture; set text direction according to the locale and your interface’s requirements.

Build stories that represent real localized content

Chromatic captures rendered Storybook stories, so the first step is making the language and component states you need to test available in Storybook. Include realistic translated strings—not just short placeholders—and representative content density. Long labels, buttons, navigation items, and error messages can expose layout problems that a short sample will miss.

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For React projects using i18next, Storybook’s React i18next recipe describes exposing a locale global in the Storybook toolbar and connecting it to the translation provider or decorator. This lets the same story render with different translations rather than requiring a separate hand-maintained story for every locale.

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Keep language, script, locale, and direction distinct

Hindi commonly uses Devanagari, while Indian-language interfaces may involve other scripts. A locale identifies language and regional behavior; a script describes the writing system; text direction is a separate setting. Do not assume a language needs right-to-left layout simply because it is localized or uses a non-Latin script. Apply direction based on the actual locale and the requirements of the UI.

Configure Chromatic Modes for locale and viewport

Chromatic Modes let you capture stories under configured global values such as locale, theme, and viewport. Snapshots for each mode have distinct baselines and approvals, which makes a locale variation an explicit visual-test condition rather than an ad hoc manual check.

When the browser’s own locale behavior matters—for example, locale-sensitive formatting or code that reads browser settings—use the browser locale option in Modes. Chromatic documents that browser locale emulation changes navigator.language and the Accept-Language request header. A translated React provider alone does not necessarily exercise those browser-dependent behaviors; decide whether the test needs both the application translation setting and browser locale emulation.

Configure capture widths for the responsive states your UI supports. Storybook viewports and Chromatic Modes can vary viewport settings; include narrow widths where longer translations may wrap, push adjacent controls, or overflow. See Chromatic’s viewport guidance for capture configuration.

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Make script fonts load reliably before capture

A correct translation can still produce a bad snapshot if the capture environment lacks the needed glyphs or takes the screenshot before the intended web font is ready. Verify that the selected font contains the characters used by the actual strings and that the same font assets are available in the test environment. A fallback font may render the text differently, change line breaks, or fail to display some glyphs.

Chromatic’s font-loading guidance describes several ways to make fonts available and deterministic: preload a font in Storybook’s preview-head.html, serve static local font files to the test environment, or use a Storybook loader with the browser Font Loading API. Choose a method that fits the project, then verify the resulting capture rather than assuming the setup worked.

Chromatic’s font documentation uses Noto Sans JP as an example for Japanese. That example is not a Hindi or Indian-script font recommendation. Select a font based on the scripts and glyphs present in your product’s real content.

Review snapshots for language-specific layout regressions

A visual test compares captured pixels with the existing baseline. When Chromatic flags a difference, inspect the rendered story and determine whether it is the intended translation or a regression. Storybook explains the visual-test and baseline-comparison model in its visual testing documentation; Chromatic describes the capture and difference review in its snapshots documentation.

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  • Check for missing, substituted, or unexpectedly styled glyphs.
  • Look for changed line breaks, clipping, and overflow at each tested width.
  • Compare component heights and alignment; a longer translation may make a button, card, or navigation row taller.
  • Confirm that the intended font loaded and that the story rendered the correct translation and locale-sensitive values.
  • Review direction and alignment only where the locale and UI require them.

Use the project’s actual story output as the evidence. Documentation explains configuration mechanisms; it cannot guarantee that a particular project’s font assets and Indian-language strings render correctly in its capture environment.

Choose a focused language-layout test matrix

A useful matrix covers the conditions most likely to change the rendered result, without creating redundant snapshots for every component and every possible combination.

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Dimension What to include
Script and font Real content using each relevant script, with the intended font loaded in the capture environment.
Locale behavior The translation and locale-sensitive formatting your stories should display; add browser locale emulation if application behavior depends on it.
Direction The direction setting required by the actual locale and component—not a blanket rule for non-Latin text.
Viewport and content length Widths where realistic translated strings could wrap, overflow, or change component dimensions.
Baseline review A clear distinction between intended localization changes and regressions such as fallback fonts or clipping.
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Troubleshoot common failures

Glyphs are missing or look like they came from another font

Check whether the intended font includes the required glyphs and is served to the Storybook capture environment. If the font loads too late, use an appropriate preload, local static font asset, or Font Loading API-based loader, then capture again.

Snapshots vary between runs

Look for a race between rendering and font loading. Make the required font available before capture and ensure the story does not rely on an unstable external font request. Compare repeated captures only after the font-loading condition is controlled.

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Text clips or pushes controls out of place

Check realistic translations at the narrow viewports where the issue occurs. Confirm that the story is rendering the intended locale and inspect wrapping, container sizing, and overflow in the captured result rather than relying on a single desktop-width snapshot.

Dates or other values remain in the wrong locale

Determine whether formatting comes from the application’s translation provider or browser locale. Configure the story’s locale global and, when the application depends on browser settings, configure the browser locale in Chromatic Modes as well.

Text direction appears wrong

Set direction according to the selected locale and the interface’s actual needs. Storybook’s i18next recipe shows updating document.dir when language changes using the i18next direction helper; do not derive direction merely from whether the script is non-Latin.

Or skip the browser setup

If you need a screenshot of a rendered page rather than a Chromatic baseline workflow, ScreenshotNeo is a website screenshot API and MCP server. Its one-request API returns an image or PDF. For example, this cURL request captures a page as WebP; see the ScreenshotNeo API documentation for request options:

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curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webp

ScreenshotNeo accepts cookie or consent banners before capture and removes more than 60 known consent platforms, newsletter popups, and chat widgets; each cleanup step can be turned off. Bot checks or CAPTCHAs, blank pages, timeouts, failed loads, and cache hits are not billed, and the response identifies page verdict and billing status in headers. Its MCP server provides take_screenshot, get_page_info, and capture_pdf tools for AI agents. The Free plan includes 1,000 shots per month with no card; paid plans start at $5 for 3,000 shots.

Sign up for 1,000 free screenshots a month, with no card required.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

ChromaticHindiInternationalizationlocalizationStorybookvisual testing

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