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DraupnirFlow · Offline browser app 1.0.1 · desktop Chrome

Check file names and build size-limited ZIP downloads

Check a product folder or an old ZIP for file names that break buyers' downloads, then build complete ZIP files within Etsy's published 5 × 20 MB limit or your own limits.

For digital-product sellers (printables, planners, fonts, templates) preparing downloads for Etsy or another shop. Offline browser app, tested in desktop Chrome 152 on Linux; Windows, macOS and other browsers have not been tested.

$12 USD · one-time purchase

Continue to checkoutStep-by-step guide

No subscription. Final total and tax appear at checkout.

DraupnirFlow 1.0.1 review after choosing a fictional 45 MB product folder: 'Ready to build 3 ZIP files — check 4 warnings first', 41 of 44 files included, and a ZIP plan with Spring-Printables-Shop-Bundle-Part-1-of-3.zip (19.69 MB), Part-2-of-3 (19.51 MB) and Part-3-of-3 (6.00 MB).
Actual DraupnirFlow 1.0.1 screen in Chrome 152 on Linux. Fictional example: three independent ZIP files, each below the selected 20 MB limit. View full size

What it helps you do

Choose a product folder, a few files or an existing ZIP. Review the system files that are left out, Windows-unsafe names that are renamed, case clashes, long-path warnings and old-ZIP problems, then download independent ZIP files that each fit the limit, plus a text or JSON report of every change.

What is in your download

  • DraupnirFlow 1.0.1 offline browser app (HTML and plain JavaScript, no dependencies), licence and privacy notes.
  • Illustrated manual with real screenshots, the fictional Cozy Planner Bundle practice folder and an old ZIP to repair.
  • Etsy preset and custom limits; text and JSON reports of every change. No account or subscription.

Fictional 45 MB showcase

Input → review → output

A larger fictional folder, Spring Printables Shop Bundle (44 files, 45.21 MB), checked with the Etsy preset. The rows come from the actual 1.0.1 run in these screenshots.

You choose → DraupnirFlow shows → You download

  • Planner/CON.pdf → Name reserved by Windows → Planner/CON_.pdf
  • Planner/Notes: 2027.txt → Character not allowed on Windows → Planner/Notes - 2027.txt
  • .DS_Store → System file left out → not in the ZIP
  • 44 files, 45.21 MB (fictional) → Ready to build 3 ZIP files → Spring-Printables-Shop-Bundle-Part-1-of-3.zip … Part-3-of-3.zip, each below 20,000,000 bytes

Review the change report before sharing your downloads. Free before you buy: the illustrated manual, fictional input files and an example output (the guide ZIP below; the app is not included). Paid download: the offline app, the illustrated manual and the example files.

Renamed files (7): Planner/CON.pdf becomes Planner/CON_.pdf, Planner/Notes: 2027.txt becomes Planner/Notes - 2027.txt, Planner/Readme.txt becomes Planner/Readme (2).txt and Planner/Weekly | Monthly planner.pdf becomes Planner/Weekly - Monthly planner.pdf.
Renamed files in the larger fictional folder: CON.pdf → CON_.pdf, Notes: 2027.txt → Notes - 2027.txt, a case clash → Readme (2).txt. View full size
Build and download: Built 3 ZIP files. Spring-Printables-Shop-Bundle-Part-1-of-3.zip 19,693,584 bytes with 25 files, Part-2-of-3 19,512,771 bytes with 14 files, Part-3-of-3 6,004,491 bytes with 5 files.
Three built ZIP files, each below 20,000,000 bytes, after Download was clicked. View full size

A practical example

Make your first ZIP from the fictional Cozy Planner Bundle

Start with

The included examples/Cozy Planner Bundle folder: 15 fictional files, including .DS_Store, Thumbs.db, an Office lock file, an empty file, a ZIP inside and two non-English names.

Get this result

Cozy-Planner-Bundle.zip (1,788,188 bytes): the 12 product files plus How to open these files.txt, and a text report of every check and change. The three system files are left out. Nothing is uploaded anywhere.

Free guide ZIP: illustrated manual, fictional examples and an example output (app not included)

Examples use fictional or synthetic data. Follow this example step by step.

Your first ZIP in three screens

Actual DraupnirFlow 1.0.1 screens in Chrome 152 on Linux with the small fictional Cozy Planner Bundle practice folder (15 files) that comes with the app and the free guide ZIP. The 45 MB folder in the top screenshot is a separate, larger fictional showcase.

  1. Open and choose

    DraupnirFlow 1.0.1 start screen in Chrome: step 1, Choose what buyers will download, with Choose product folder, Choose files and Check an existing ZIP buttons; step 2, Settings, with the Etsy digital listing preset of 5 files, 20 MB each.
    Open DraupnirFlow.html in desktop Chrome and click Choose product folder…. To practise, choose the included examples/Cozy Planner Bundle folder. Your files stay on your computer. View full size

  2. Review the findings

    Review: Ready to build 1 ZIP file, check 4 warnings first. 12 of 15 files included, 3 left out, 4 fixed automatically; ZIP plan Cozy-Planner-Bundle.zip with 13 files, 1.79 MB, 8.9% of the limit; findings with warnings, fixed system files and an Etsy file-name note.
    The review for the Cozy Planner Bundle: 12 of 15 files included, 3 system files left out, 4 deliberate warnings and one ZIP at 8.9% of the limit. View full size

  3. Build and download

    Build and download step: Built 1 ZIP file. Cozy-Planner-Bundle.zip, 1.79 MB (1,788,188 bytes), 13 files, with its SHA-256, a Download again button and Download report buttons.
    Build ZIP files makes Cozy-Planner-Bundle.zip: 1,788,188 bytes and 13 files, including How to open these files.txt. Keep the text report with your records. View full size

How it works

  1. Choose

    A product folder, a few files or a ZIP you already made.

  2. Review

    See left-out system files, renamed Windows-unsafe names, case clashes and the ZIP plan before anything is built.

  3. Build and save

    Download complete ZIP files within your limit, plus a report of every change.

Read the complete guide

Before you buy

  • Desktop Google Chrome; tested in Chrome 152 on Linux. Windows, macOS, phones and other browsers have not been tested.
  • The whole DraupnirFlow-1.0.1.zip extracted, with DraupnirFlow.html kept next to its app folder.
  • Your product folder, files or an existing ZIP (Stored or Deflate entries; no password, ZIP64 or split volumes), up to 1.5 GB per job.

Extract the whole DraupnirFlow-1.0.1.zip, keep DraupnirFlow.html next to its app folder, and open DraupnirFlow.html in desktop Google Chrome. No server, account or internet connection is needed. Tested in Chrome 152 on Linux. Files are read only inside your browser and nothing is uploaded. To uninstall, delete the extracted folder; the ZIP files and reports you saved stay in your downloads folder.

Compatibility & limits

Tested in desktop Chrome 152 on Linux with fictional files; Windows, macOS, phones, other browsers and real Etsy uploads were not tested, and output was verified with Linux ZIP readers. DraupnirFlow prepares local files only: it does not upload to Etsy or connect to any shop, and it cannot guarantee that a marketplace accepts a file or that every unzip app opens it. The Etsy preset follows Etsy's published limits (5 files; 20 MB treated as 20,000,000 bytes; upload names of at most 70 letters, digits, periods, underscores or hyphens). Up to 1.5 GB per job in browser memory; the largest tested job is 45 MB. Existing ZIPs need Stored or Deflate entries without passwords, ZIP64 or split volumes. File contents and archives inside your product are not inspected. A single file larger than the limit, or more ZIP files than allowed, blocks the build.

Get DraupnirFlow

Perpetual use of the purchased version on your devices for personal or internal commercial work. Keep reasonable backups and modify your own copy; do not redistribute or resell original proprietary code. Third-party licenses and any existing preview permissions retain their rights.

Before payment, save the private recovery code shown by checkout. After Paddle confirms payment, use it to download your ZIP or return for it later. No subscription, future update or email delivery is promised. See the illustrated steps.

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