# Tools

Free tools for shops that print what their customers design and for their customers. They work in your browser: nothing you choose is uploaded.

- [What size can my image print at 300 DPI?](https://printblob.com/tools/print-size/): Pixels to inches and centimetres at 300 DPI: choose an image on your device to see its size in pixels, the largest size it prints at 300 DPI and at 150 DPI, and whether it fills a 28 × 36 cm t-shirt print area. The image never leaves your browser.
- [DTF image checker: is my file ready to print as a DTF transfer?](https://printblob.com/tools/dtf-image-checker/): A free DTF image checker: choose a PNG, JPEG or WebP and see whether it is ready to print as a DTF transfer: its transparent background, half-transparent areas, light halo, stray specks, resolution at your print size and file format, each with the number behind it. Nothing is uploaded.
- [DTF pricing calculator: what to charge for DTF transfers and shirts](https://printblob.com/tools/dtf-pricing-calculator/): A free DTF pricing calculator: enter what you pay for gang sheets or transfers, the design’s size, the blank, your pressing time and the margin you want, and see the cost per transfer, the cost per printed shirt and the price for 1, 10, 25 and 50 shirts in your currency. Nothing leaves your browser.
- [T-shirt printing cost calculator for DTF, DTG and screen printing](https://printblob.com/tools/t-shirt-printing-cost-calculator/): A free t-shirt printing cost calculator: choose DTF, DTG or screen printing, enter your own costs and margin, and see the cost and price per shirt for 1, 10, 25, 50, 100 and 250 shirts, with screen printing’s set-up shared over the run. Nothing leaves your browser.
- [T-shirt mockup generator: free PNG mockups and a 3D video](https://printblob.com/tools/t-shirt-mockup-generator/): A free t-shirt mockup generator that works in your browser: choose your artwork, place it on the front of a t-shirt, switch on its colours and download a PNG mockup of each colour, or a video of the shirt turning in 3D. Nothing is uploaded, and there is no account to make.

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Page: https://printblob.com/tools/

See also: [docs](https://printblob.com/docs/index.md), [guides](https://printblob.com/guides/index.md), [features](https://printblob.com/features/index.md), [situations](https://printblob.com/situations/index.md), [compare](https://printblob.com/compare/index.md), [demos](https://printblob.com/demos/index.md), [themes](https://printblob.com/themes/index.md).