QuickTiny

Paste JSON, text, a URL, or an image and get the right browser tool quickly. QuickTiny has 12 free tools that need no account, plus a separate $4.99 one-time Pro batch image compressor. Text and image processing happens in your browser.

Try a free tool directly:

Task	Tool
Format, validate, or repair common JSON mistakes	JSON Formatter
Compress one JPG or PNG without uploading it	Image Compressor
Count words and characters	Word Counter
Encode or decode Base64 text	Base64
Sort a list of lines	Sort Lines

Or open all 13 tools. The batch compressor is the only paid feature; the 12 tools above and on the site are free.

One useful edge case: If fetch(...).json() reports Unexpected token '<', the API probably returned an HTML page. Check the HTTP response and URL before trying to repair JSON. For actual JSON syntax errors, the formatter explains the error and offers fixes for common, safe cases.

Reusable Shopify image-limit check

check-shopify-image-limits.js is a tiny, dependency-free function other developers are welcome to copy into their own projects. It checks an image's dimensions and file size against Shopify's product/collection image upload limits (25 megapixels, under 20 MB — see the test results and dataset).

checkShopifyProductImageLimits({ width: 5200, height: 5200, bytes: 12000000 });
// => { megapixels: 27.04, passesMegapixels: false, passesFileSize: true, passes: false }

Works in the browser (<script src="check-shopify-image-limits.js">) or in Node (require("./check-shopify-image-limits")). No dependencies, no build step.

Scope: Shopify's product and collection image upload path specifically. Other Shopify upload contexts (theme assets, blog images, general Files uploads) use different limits — don't assume this function's thresholds apply there without checking.

Embed the free Shopify image checker

Publishers writing for Shopify merchants can embed the single-image checker on a resource page without an account or an API key. The visitor chooses a product photo in their own browser; the image is not uploaded to QuickTiny. The checker reports whether the file exceeds the product/collection image limits and offers a local fix for an oversized image.

<iframe
  src="https://quicktinyv2.vercel.app/embed/shopify-image-checker"
  title="Shopify product image limit checker"
  loading="lazy"
  style="width:100%;height:340px;border:0"
></iframe>

Try the stand-alone checker before embedding. The checker is not a Shopify app and is not affiliated with Shopify. Its 25 MP / 20 MB checks apply to product and collection images, not every image uploader in Shopify. Editorial inclusion is optional; no paid placement or reciprocal link is requested.