All tools

Every QKitBox tool on one page. Free, no signup, and everything runs in your browser.

Shipping & postage

Drop your Etsy, eBay, Shopify or Pirate Ship order export. See how many orders ship to USPS rural / Geo BยทCยทD

Billable weight for USPS, UPS and FedEx packages: dimensional (volumetric) weight vs actual weight, with inch/

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Shipping Label Cropper

Letter or A4 label PDF in, print-ready 4ร—6 out โ€” auto-trim, presets or manual crop, vector-sharp.

Enter the order date and your handling time to get the ship-by date and an estimated delivery window, with bus

Pricing & fees

Free profit calculator for Etsy, eBay and Shopify sellers: platform fees, payment processing, shipping costs,

Percent-off price math, stacked discounts, and cost-plus markup with the margin it produces โ€” all instant, in

Add tax to a net price or strip it back out of a tax-inclusive price โ€” the reverse-VAT math done instantly.

Return on ad spend, CPA and the break-even ROAS for your profit margin โ€” know exactly when an ad campaign stop

Listings & copy

Turn your keyword ideas into valid Etsy tags: 13 tags max, 20 characters each โ€” deduped, counted and ready to

Check your product title against Etsy (140), eBay (80), Amazon and Shopify limits with a live character count.

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SKU generator

Create clean, sortable SKU codes from a prefix, category and date โ€” pick a quantity and copy the whole list.

QR codes & barcodes

Generate beautiful static QR codes that never expire: custom colors, dot styles, rounded corners, PNG or SVG d

Generate CODE128, EAN-13, UPC and more as PNG images โ€” one at a time or in bulk from a pasted list, packaged a

Images & visuals

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Image Compressor

Shrink photos to a target size โ€” verified byte counts, batch ZIP, EXIF stripped.

Rounded corners, soft shadow, gradient backdrop โ€” the social-ready screenshot look, free.

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Aspect Ratio & Print Size

Ratios, distortion-free scaling and what your digital files actually print at โ€” DPI, inches, paper sizes.

Image compression

Under 100 KB per image โ€” drop it in, download the verified result.

Under 200 KB per image โ€” drop it in, download the verified result.

PDF tools

Combine multiple PDF files into one, entirely in your browser. Nothing is uploaded โ€” merge works offline.

Pull a page range out of a PDF into a new file โ€” entirely in your browser, nothing uploaded.

Fix sideways scans: rotate all pages or a selected range of a PDF by 90, 180 or 270 degrees, entirely in your

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Images to PDF

Turn JPG and PNG images into a single PDF, in order, entirely in your browser. Great for receipts, scans and p

Invoicing

Create a professional invoice in your browser and save it as a PDF. Free and unlimited โ€” no account, no waterm

Reports & data

Upload this period's and last period's ad-platform CSV export. Get a branded client report: spend, leads, cost

Compare your current and updated Shopify product CSVs before importing. Spot price changes, fields that will b

Both directions, delimiter auto-detect, nested flattening. Paste or drop a file.

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CSV Cleaner

Trim, dedupe and fix CSVs with a change summary โ€” safe defaults.

Documents

Answer six questions and get a plain-English return and refund policy you can paste into your shop. A starting