LazySizes is a JavaScript library used to delay the loading of images (iframes, scripts, etc) until they come into view.
Get all 156,588 companies using LazySizes
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Companies
156,588
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Top Industry
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Adoption Insights
LazySizes is used by 156,588 companies in our database, representing approximately 5.29% of all tracked websites..
Companies Using LazySizes
| Company | Domain | Country | Industry | Employees |
|---|---|---|---|---|
 Cellares | cellares.com | US | Biotechnology | 101-250 |
 Suno | suno.com | US | Apps | 101-250 |
 Altruist | altruist.com | US | Asset Management | 101-250 |
 Alloy | alloy.com | US | Compliance | 251-500 |
 Nuclera | nuclera.com | GB | Biotechnology | 101-250 |
 Redwire | redwirespace.com | US | Manufacturing | 1001-5000 |
 Generate Biomedicines | generatebiomedicines.com | US | Artificial Intelligence (AI) | 251-500 |
 Tulip Interfaces | tulip.co | US | Analytics | 251-500 |
 SharkNinja | sharkninja.com | US | Beauty | 1001-5000 |
 Massive Bio | massivebio.com | US | Artificial Intelligence (AI) | 101-250 |
Top Alternatives to LazySizes
Other JavaScript libraries technologies sorted by adoption
How We Detect LazySizes
The Web Radar detects LazySizes by analyzing HTTP headers, JavaScript variables, HTML source code, cookies, and DNS records across 3M+ websites. Our detection engine uses over 10,000+ pattern rules to ensure accurate identification. Browse all technologies →
Frequently Asked Questions
What is LazySizes?+
LazySizes is a JavaScript library used to delay the loading of images (iframes, scripts, etc) until they come into view.
How many companies use LazySizes?+
156,588 companies in our database use LazySizes, representing approximately 5.29% of all tracked websites.
Is LazySizes popular?+
LazySizes is used by 156,588 companies, making it one of the most widely adopted JavaScript libraries technology based on adoption across our tracked websites.
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Browse DatasetsData last updated: June 2026