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Free browser-based media utilities. All processing runs locally — no uploads, no accounts required.
AdvertisementDownload YouTube video thumbnails in all sizes
Convert images to Base64 strings for embedding in code
Check your screen size, viewport, DPI and colour depth
View metadata embedded in JPEG photos
Toolzilla's Media Tools help creators and developers work with YouTube thumbnails, Base64 image encoding, screen resolution data, and photo EXIF metadata — all processed locally in the browser.
Download YouTube video thumbnails in all available resolutions.
Tip: Use maxresdefault for highest quality when available.
Convert images to Base64 strings for embedding in HTML, CSS, or JSON.
Tip: Base64 increases file size ~33% — use only for small icons and assets.
Display your screen size, viewport dimensions, DPI, and colour depth.
Tip: Compare viewport vs. screen size to understand mobile browser chrome impact.
View camera metadata embedded in JPEG photos.
Tip: Strip EXIF GPS data before publishing client photos online for privacy.
Public video thumbnails are accessible via standard URL patterns. Private or age-restricted videos may not return all sizes.
Other image tools may strip metadata during re-encoding. Use the EXIF viewer on originals before processing.
No. Base64 conversion and EXIF reading happen entirely in your browser.