Create consistent business identifiers
Generate readable SKU, batch, lot, invoice and purchase-order number patterns for inventory, procurement, accounting, production and e-commerce workflows.
Business Identifiers collection
22 toolsBusiness Identifiers & Barcode Tools Online Free
Free browser-based tools to generate SKUs, barcodes, batch, lot, invoice and purchase-order numbers, plus validate GTIN, UPC and EAN check digits.
1. Choose a tool2. Process in browser3. Download or copy
Browser-first workflowWorkflow tools
Browse Business Identifiers & Barcode Tools
Start with a curated tool, then continue through category-matched utilities discovered automatically from the live catalogue.
01→
SKU Generator
Generate structured product SKUs in bulk with category, brand, variant and sequence controls.
02→
Barcode Generator
Generate scannable barcodes for product labels, inventory tests, documents and retail workflows.
03→
Barcode Check Digit Calculator
Calculate GS1 check digits for GTIN, EAN, UPC and related barcode numbers.
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GTIN Validator
Validate GTIN-8, GTIN-12, GTIN-13 and GTIN-14 numbers using the GS1 check digit.
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UPC Validator
Validate a 12-digit UPC-A number and identify the expected check digit.
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EAN Validator
Validate EAN-8 and EAN-13 numbers using the standard check-digit calculation.
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Batch Number Generator
Generate controlled batch identifiers for production, packaging and traceability.
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Lot Number Generator
Create readable lot numbers with site, date and sequential numbering controls.
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Invoice Number Generator
Create structured invoice identifiers using company, branch, year and controlled running sequences.
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Purchase Order Number Generator
Generate structured purchase order numbers for companies, branches and procurement teams.
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Three-Way Match Analyzer
Reconcile purchase-order, goods-receipt and supplier-invoice quantities and prices using configurable tolerances.
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Duplicate Invoice Checker
Upload CSV or Excel invoice data to find exact and possible duplicate invoices locally in your browser.
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PO vs Invoice Matcher
Compare purchase-order and invoice files to detect missing lines, extra charges, quantity differences and price mismatches before payment.
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Purchase Order Validator
Validate purchase-order files for missing fields, duplicate items, invalid quantities and pricing risks before release.
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Invoice Payment Readiness Checker
Check approval, matching, receipt, tax, bank and duplicate controls before payment release.
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Multilingual Document OCR
Extract editable text from scanned invoices, purchase orders and delivery notes using browser-based OCR for English, Greek, Hindi, Arabic, German, French, Spanish, Italian and Dutch.
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Favicon Generator
Generate browser-ready favicon files and sizes from a logo or square source image.
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Sitemap XML Validator
Validate sitemap XML structure, URL locations, duplicates and common limits locally in your browser.
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UUID Generator
Generate UUID v4 identifiers for database records, API tests, fixtures and distributed application workflows.
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Invoice Total Validator
Verify that invoice subtotal, discount, tax and additional charges reconcile with the stated total.
21→
Multi-Invoice Compare
Compare two CSV or Excel invoice lists and identify missing records, amount differences and PO mismatches.
22→
Payment Terms Calculator
Compare early-payment discounts with funding cost and cash-flow impact before deciding when to pay.
Workflow guide
How this collection fits together
Validate GS1 check digits
Check GTIN, UPC and EAN lengths and check digits before importing product data or testing barcode integrations. Mathematical validation does not prove that a number has been officially assigned.
Browser-based and private
Values are processed locally in the browser. No account or operational system connection is required.
Use controlled numbering policies
Document prefixes, sequence ownership, reset rules and uniqueness controls before using generated identifiers in production systems.
Common questions
Frequently Asked Questions
What are Business Identifiers & Barcode Tools?
Free browser-based tools to generate SKUs, barcodes, batch, lot, invoice and purchase-order numbers, plus validate GTIN, UPC and EAN check digits.
Which tool should I use first?
Start with the utility that matches the exact input and outcome you need, then follow the related links for validation or the next workflow step.
How should I verify the result?
Review the output, compare important totals or fields with the source and test a small sample in the destination system before relying on it for production work.
Are business identifiers & barcode tools free to use?
Yes. The listed FormatForge tools can be opened without creating an account. Individual pages explain processing, limitations and any important verification steps.
Do I need to install software?
No installation is required for these browser-based workflows. Some advanced or organisation-specific tasks may still require specialist desktop or enterprise software.
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