| What it does | Generate GS1-compliant UPC, EAN, and Amazon FNSKU barcode labels online
| Read papers. Keep what you learn.
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: Single PNG/SVG barcodes with no account or watermark, plus 3 free full-sheet PDFs on sign-up. Pro: $9/month (or $79/year, approximately $6.58/month with 2 months free) for unlimited calibrated barcode label sheets, CSV/multi-SKU import, and saved batch archive. One-off sheet packs: Starter Pac
| Free: desktop app and self-hosted server. Lite: $2/month or $20/year. Plus: $5/month or $50/year. Pro: $20/month or $200/year.
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| Key features | - UPC-A barcode generation with automatic check digit, SKU and price fields
- Amazon FNSKU labels with X00 code and product title for FBA
- EAN-13 international barcode labels with guard bars and quiet zones
- GS1 DataMatrix 2D codes with expiration dates and lot numbers
- Thermal label sheets calibrated for Zebra, Rollo, and Dymo printers
- CSV and multi-SKU batch import for bulk label creation
- Avery 5160/8160 30-up and Avery 5163 10-up calibrated PDFs and Word templates
- Alignment test PDFs to verify print settings
- Check digit calculator for UPC-A, EAN-13, and GTIN-14 validation
- Cloud-based saved batch archive for re-downloading old label batches
| - Highlight, draw, and annotate on PDFs with every mark becoming a note
- Outliner with live Markdown and LaTeX for mathematical notation
- AI chat to ask questions about papers with cited answers
- Full-library search across notes, highlights, and all PDFs
- Shared workspaces with live cursors and comments for collaboration
- Works offline on iPad, Android, and desktop with automatic sync
- Integrations with Zotero, Obsidian, Logseq, and Notion
- Browser extension for one-click saving papers with metadata
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| What makes it different | - Calibrated to exact physical dimensions of US Letter sheets and thermal rolls with no manual scaling needed
- Single PNG/SVG barcodes are always free with no account or watermark required
- Blank templates and alignment tests provided free for all label formats
- Mix multiple SKUs on one sheet with custom quantities
- One-off sheet packs never expire and can be used anytime
| - Self-hosted option with one Docker image for full control over data
- Live math support with Markdown and LaTeX directly in outliner notes
- Works on any device: Windows, macOS, Linux, iPad, Android, and browsers
- No vendor lock-in with SQLite files and export at any time
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 6 ▲ +2 (up) since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 0 | 0 |
| Citation Flow (Majestic) | 0 | 9 |
| Referring domains (Majestic) | 0 | 1 |