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    Bing Spell Check

    Help users correct spelling errors, recognize the difference among names, brand names, and slang, as well as understand homophones as they’re typing.

    See for yourself

    Try out the spell check capabilities with Bing Spell Search API v7. Switch between spell correction for web searches (‘Spell’) and documents (‘Proof’) from the top-left drop-down. ‘Spell’ is more aggressive in order to return better search results, while ‘Proof’ is less aggressive and adds capitalization, basic punctuation, and other features to aid document creation. With the API v7, discover new improved error handling to make it easy to troubleshoot and diagnose any problem queries.

    See it in action

    1. Preview
    2. JSON
    he will be there in 5 minutes
      "_type": "SpellCheck",
      "flaggedTokens": [
          "offset": 11,
          "token": "their",
          "type": "UnknownToken",
          "suggestions": [
              "suggestion": "there",
              "score": 0.8989328840464677

    Want to build this?

    Powerful statistics for your Spell Check queries

    Inform your strategic decisions with the Bing Statistics add-in. Quickly retrieve statistics such as your top queries, call volume, market distribution, response code summary, and many more—and derive rich insights to advance your business. Visit the portal to consume these statistics. You can subscribe to Bing Statistics Add-in from Azure Portal.

    Learn more

    Word breaks

    Correct word-breaking issues with a single flag.


    Easily recognize slang and informal language.


    Spot common name errors in context.


    Fix homonyms and other hard-to-spot errors in context.


    Provide support for new brands and other coined expressions as they emerge.

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    Explore the Bing Spell Check API v7