Responsive Image Builder
Responsive image markup is easy to get subtly wrong. This builder inspects source dimensions, creates a width ladder and outputs copy-ready picture markup with lazy loading and async decoding.
No image inspected
/images/hero-480.webp 480w, /images/hero-768.webp 768w, /images/hero-1024.webp 1024w, /images/hero-1440.webp 1440w, /images/hero-1920.webp 1920w
This generates implementation code and naming plans. Pair it with Image Optimizer to create the actual files at each width.
runtime
Browser-local execution
Inputs stay inside the current tab unless you copy, download or explicitly export.
memory
Session handoff
Magic Paste can pass input to a target tool through sessionStorage, never through the URL.
control
User-owned state
Favorites, recent tools and workflow history are local browser data you can clear from the browser.
smart handoff graph
session handoff readySuggested next moves
/media
EXIF Inspector & Cleaner
Inspect hidden JPEG metadata, flag GPS privacy risks and export a cleaned local copy.
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SVG Studio
Preview, sanitize, minify and convert SVG assets into Data URI or JSX snippets.
/media
Image Optimizer
Compress and resize images locally with Canvas and native browser encoders.
/media
Palette Extractor
Extract dominant colors from images as HEX, OKLCH, CSS variables and Tailwind tokens.
sponsor
Sponsor this toolFixed native slots for developer products. No third-party tracking, no popups, no layout shift.
01
How to use
- 01Inspect a source image or enter a base path.
- 02Tune widths, format, alt text and sizes.
- 03Copy the srcset or full picture snippet.
02
FAQ
- Does it generate the actual resized files?
- No. It generates delivery markup. Use Image Optimizer to create the files.
03
Related tools
- /media→EXIF Inspector & CleanerInspect hidden JPEG metadata, flag GPS privacy risks and export a cleaned local copy.
- /media→SVG StudioPreview, sanitize, minify and convert SVG assets into Data URI or JSX snippets.
- /media→Image OptimizerCompress and resize images locally with Canvas and native browser encoders.
- /media→Palette ExtractorExtract dominant colors from images as HEX, OKLCH, CSS variables and Tailwind tokens.