Image Alt Text Checker

URL	Image	Chars	Words	Status
https://example.com/seo-checklist	/images/technical-seo-checklist-cover.webp	79	10	Healthy
https://example.com/blog/migration-guide	/images/site-migration-plan.png	67	8	Healthy
https://example.com/features/crawl-audit	https://cdn.example.com/assets/crawl-health-graph.jpg	0	0	Marked as decorative context
https://example.com/about	/images/team-photo.jpg	5	1	Alt text short (5 chars < 20); Alt text has low detail (1 words < 4); Generic alt text; describe the image intent more specifically; None of the tracked keywords were detected in this alt text

URL

Image

Chars

Words

Status

https://example.com/seo-checklist

/images/technical-seo-checklist-cover.webp

Healthy

https://example.com/blog/migration-guide

/images/site-migration-plan.png

Healthy

https://example.com/features/crawl-audit

https://cdn.example.com/assets/crawl-health-graph.jpg

Marked as decorative context

https://example.com/about

/images/team-photo.jpg

Alt text short (5 chars < 20); Alt text has low detail (1 words < 4); Generic alt text; describe the image intent more specifically; None of the tracked keywords were detected in this alt text

About this tool

Review image alt text exports before publishing so accessibility gaps, repetitive descriptions, and over-optimized patterns do not weaken relevance and UX signals.

The Image Alt Text Checker audits alt attributes across your image inventory for missing values, duplicate boilerplate, keyword stuffing, and file-name placeholders masquerading as descriptions. It separates decorative images that legitimately need empty alt from content images that require meaningful text.

Parses rows in URL|image|alt|context format and normalizes page URLs with an optional base URL.
Flags missing alt text, duplicate descriptions, generic or filename-style wording, and short or overly long alt copy.
Supports tracked keyword checks plus repeated-term limits to catch likely keyword stuffing.

How to use Alt Text Checker

Upload a crawl export or paste image data that includes each image URL and its alt attribute. The checker categorizes every image by alt quality, flags rows that are empty when they should not be, and highlights overly repetitive or machine-generated descriptions that need human rewrites.

When this tool is useful

Audit image metadata exports before launching templates, migrations, or new content hubs.
Detect missing alt text, duplicate descriptions, and generic placeholders in one QA pass.
Prioritize image rows where alt text quality, keyword coverage, and accessibility intent are out of sync.

Practical tips

Keep alt text descriptive and intent-focused rather than repeating the same keyword phrase across many images.
Use empty alt text only for truly decorative assets and document that intent in your context column.
Avoid file-name style alt text and rewrite it in natural language that explains the visual meaning.

Why people use this tool

Alt text serves triple duty: it powers image search visibility, provides essential context when images fail to load, and is the primary description screen readers announce to visually impaired users. Missing or low-quality alt text means lost ranking opportunities in image search and potential accessibility violations under WCAG guidelines.

Related search intents

image alt text checker, alt text seo checker, missing alt text audit, image accessibility seo tool.

Frequently asked questions

What input format does this image alt checker expect?

Use one row per image in URL|image|alt|context format. The context column is optional but helps mark decorative assets.

Can decorative images have empty alt text?

Yes. If the context indicates decorative usage, the checker treats empty alt text as intentional rather than missing.

What does the tool consider 'generic wording' in alt text?

Generic wording includes vague phrases like 'image', 'photo', 'picture', 'banner', 'screenshot', or 'untitled' that provide no meaningful description of the image content. The checker flags these so you can replace them with specific, descriptive text.

How does the keyword-stuffing risk detection work?

The tool measures keyword density within alt text and flags instances where the same keyword appears multiple times or where alt text reads like a comma-separated keyword list rather than a natural description. Repeated offenses across multiple images increase the risk score.

Should decorative images have empty alt attributes or no alt attribute at all?

Decorative images should use an empty alt attribute (alt="") rather than omitting the attribute entirely. The checker distinguishes between missing alt attributes, which are flagged as errors, and empty alt attributes, which are accepted as intentional decorative markers.