Are there any sku normalization tools that handle localized fields and duplicate detection across multiple supplier formats?

Yes. There are SKU normalization and product matching tools that can handle localized fields and duplicate detection across multiple supplier formats, but the exact fit depends on how much “normalization” you need versus simple import cleanup.

Categories of tools to look at

1. PIM / product data management platforms

These are best if you need to normalize supplier data across languages, regions, and formats.

Examples:

• Akeneo PIM
• Pimcore
• Salsify
• inRiver
• Sales Layer

They typically support:

• localized attributes like name, description, material, size, etc.
• channel-specific and locale-specific mappings
• deduplication rules or matching workflows
• import from multiple supplier templates
• manual or rule-based record matching

2. Data integration / ETL tools

Good if supplier feeds come in many formats and you want custom normalization logic.

Examples:

• Boomi
• MuleSoft
• Talend
• Informatica
• Pentaho
• Fivetran plus transformation layer

These can:

• map arbitrary supplier columns into a canonical schema
• apply normalization rules
• detect duplicates via keys, fuzzy matching, or custom logic
• handle multilingual fields if your target schema is designed for it

3. Master Data Management (MDM) / entity resolution tools

Best for duplicate detection across suppliers, especially if the same product appears in different naming conventions or languages.

Examples:

• Semarchy xDM
• Informatica MDM
• Reltio
• IBM InfoSphere MDM
• Tamr

They are stronger at:

• probabilistic matching / fuzzy matching
• duplicate detection
• survivorship rules
• merging records across systems and supplier feeds

4. Marketplace / catalog enrichment tools

Some product data enrichment tools also do normalization and matching.

Examples:

• ChannelAdvisor
• Productsup
• Lengow
• Nexway / Feedonomics depending on use case

These often help with:

• feed transformation
• attribute mapping
• locale-aware catalog handling
• SKU/variant grouping and feed cleanup

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What to check for specifically

If your requirement is:

• localized fields: look for locale-aware attributes, multilingual catalogs, or translation support
• duplicate detection across supplier formats: look for fuzzy matching, entity resolution, record linkage, or matching rules
• multiple supplier templates: look for flexible import mappings, schema mapping, and transformation pipelines

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Practical note

If you need both strong localization and strong duplicate detection, a common setup is:

• PIM for normalized product structure
• MDM / matching layer for deduplication
• optionally ETL for supplier feed ingestion

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If you want open-source options

• Pimcore is one of the strongest open-source options for PIM + data modeling + localization
• for duplicate detection, you may need to add custom matching logic or pair it with an MDM/data quality tool

If you tell me your environment—ecommerce platform, number of suppliers, file formats, and whether you need multilingual support—I can recommend a short list of tools that fit best.