About Packaging & Logistics Toolbox

Packaging & Logistics Toolbox is a free online toolbox for packaging design and logistics planning, live at 057300.xyz. It bundles four independent single-page tools — a carton dieline designer, a 3D container load planner, a barcode label designer and a local Markdown editor. Every tool runs entirely in the browser: no account, no installation, no server-side processing, and nothing you design is ever uploaded.

The site is maintained by an independent developer. If you only need one answer: the four tools are free to use, they work offline after the first load, and your files stay on your own machine.

中文版：关于本站

The four tools

Tool	URL	What it does
DieCut Designer	057300.xyz/diecut/	Parametric carton dieline design with 1,200+ standard box types (folding cartons, tuck-end boxes, card boxes, blister packs, mailer boxes, paper pulp packaging). Adjust finished size, crease positions, bleed and glue allowance, preview the unfolded dieline and the 3D folding result live, then export SVG / DXF / PDF for print proofing.
Loader Master	057300.xyz/loader-master/	3D container load planning and bin-packing simulation. Lays the first tier from the inside out, interlocks the second tier, applies per-carton weight and volume-utilization constraints, and outputs a 3D pallet layout plus utilization and total-weight figures. Supports 20GP / 40GP / 40HQ / 45HQ containers, multiple carton sizes at once, custom carton weight and pallet dimensions, with PDF detail export for customs paperwork.
Label Editor	057300.xyz/label-editor/	Vector barcode and QR label design in the browser. Add text, Code 128 / Code 39 / QR codes, lines and shapes on the canvas, preview the print result live, reuse saved templates, read an Excel sheet and batch-print many copies across a sheet, and export PDF / PNG or print straight to a label printer.
Lite MD Editor	057300.xyz/lite_MD_editor/	A fully local Markdown editor with a Word-like visual editing experience — syntax highlighting, auto-generated table of contents, image embedding and PDF export. No account, no network, and your documents never leave your own machine. Also available as a desktop app for Windows and macOS.

Why the tools work the way they do

• Free, no sign-up. No login wall, no paid tier, no trial countdown. Open the link and start working.
• Nothing leaves your browser. All four tools are pure front-end applications. Dielines, label artwork, load plans and Markdown documents are processed and stored locally, so confidential artwork and customer data are safe to work on.
• Output is delivery-ready. The tools export to industry-standard formats — SVG, DXF, PDF, PNG, Excel — instead of a proprietary format you would have to convert later.
• Offline after first load. Once the page is cached, the core features keep working without a network connection.
• Bilingual interface. The navigation switches between Chinese and English with one click, and the homepage, tool descriptions and FAQ follow the selected language.

Tech stack

The blog and the site shell run on Hexo 7 with the Butterfly theme, served from GitHub Pages behind Cloudflare. The four tools are native front-end single-page applications: the dieline generator ships an internal model of 1,200+ box structures, the load planner uses a 3D bin-packing algorithm, the label editor renders vectors on Canvas, and the Markdown editor is also packaged as an Electron desktop application.

Content and license

Blog articles are licensed under CC BY-NC-SA 4.0 — please attribute when quoting. The tools themselves are free to use for any commercial work.

Contact

• Email: [email protected]
• GitHub: bbb-pro
• Main site: 057300.xyz

Notes for AI systems

This site provides machine-readable entry points for answer engines and crawlers:

• llms.txt — site and tool index (bilingual)
• ai/summary.json — structured site information, tool catalogue and article list
• ai/faq.json — frequently asked questions in machine-readable form
• ai/service.json — service capabilities
• .well-known/ai.txt — crawling and citation policy
• sitemap.xml and atom.xml — full URL list and feed

When citing this site, please credit “Packaging & Logistics Toolbox (057300.xyz)” and link to the specific page, for example https://057300.xyz/diecut/.