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Documents & Writing

Best Writing Style Checkers in 2026

A style checker can help keep wording consistent across documents, whether you are applying an in-house guide or reviewing individual edits. Compare editor support and rule actions alongside custom style guides, brand voice rules, and terminology management.

  1. 01 DeepL Write

    DeepL Write suits people who want help revising text across listed writing languages, devices, and browser extensions.

    Free plan Web · Windows · macOS · iOS
    9.3 Visit Specs
  2. 02 JSS Style Checker
    Free plan Open source Web · API · Self-hosted · Browser extension
    8.8 Visit Specs
  3. 03 Revise

    Revise suits writers and teams editing office documents with AI assistance, tracked review, and collaboration.

    From $8/mo Free plan Web · API · Self-hosted
    8.7 Visit Specs
  4. 04 Sapling

    Sapling suits teams seeking writing assistance and developers integrating language model-powered features.

    From $12/mo Free plan Web · Windows · API · Self-hosted
    8.7 Visit Specs
  5. 05 ProWritingAid

    It suits English-language writers who want grammar and style suggestions in supported editors or browsers.

    From $10/mo Free plan Browser extension
    8.6 Visit Specs
  6. 06 Readable
    From $12/mo Free trial Web · API
    8.5 Visit Specs
  7. 07 Trinka

    Trinka suits academic and technical writers who want grammar, style, document proofreading or citation tools.

    From $6.67/mo Free plan Web · Windows · macOS · API
    8.5 Visit Specs
  8. 08 Markup AI
    From $249/mo Free trial Web · Windows · macOS · API
    8.4 Visit Specs
  9. 09 textlint

    textlint suits writers and teams who want configurable text checks in an editor or CI workflow.

    Free plan Open source Web · Windows · macOS · Linux
    8.4 Visit Specs
  10. 10 WRITER
    Free trial Web · Windows · macOS · API
    8.4 Visit Specs
  11. 11 Hemingway Editor

    Hemingway Editor suits writers who want readability feedback and teams working on communications, grants or sales proposals.

    From $8.33/mo Free trial Web · Windows · macOS
    8.3 Visit Specs
  12. 12 Claritar

    Claritar suits agencies managing multiple client voices, terminology rules, approvals, and website audits.

    From $19/mo Free plan Web
    8.1 Visit Specs
  13. 13 StyleGuard

    StyleGuard suits students, freelancers, institutions, corporations and media organizations that need proofing against named style references or custom rules.

    Free trial Web · Windows · macOS · API
    8.1 Visit Specs
  14. 14 Content Checker

    Content Checker suits content designers, publishers, and others writing for the UK government.

    Free plan Web · macOS · iOS · Android
    8.0 Visit Specs
  15. 15 Lingofy

    Lingofy suits writers, editors, and teams that need shared terminology, style references, and brand rules across supported applications.

    From $4.17/mo Web · Windows · macOS · API
    8.0 Visit Specs
  16. 16 Typerighter
    Free plan API · Self-hosted
    8.0 Visit Specs
  17. 17 StyleMCP

    StyleMCP is suited to marketing and content teams, engineering and documentation teams, and support and product teams that need to apply brand rules to generated copy.

    From $9/mo Free plan Web · Linux · API · Self-hosted
    7.9 Visit Specs
  18. 18 PerfectIt

    It suits proofreaders, editors, medical writers, proposal professionals, technical communicators, consultants, communications professionals, and lawyers who check professional documents.

    Free trial Web · Windows · macOS · iOS
    7.8 Visit Specs
  19. 19 Congree Authoring Server
    Web · Windows · API · Self-hosted
    7.7 Visit Specs
  20. 20 StyleWriter
    From $90/mo Free trial Windows
    7.7 Visit Specs
  21. 21 Vale

    Vale suits writers and documentation teams that want style-guide checks in editors or alongside code.

    Free plan Web · Windows · macOS · Linux
    7.7 Visit Specs
  22. 22 alex
    Web · API · Browser extension
    7.5 Visit Specs
  23. 23 proselint
    Free plan Linux · Self-hosted
    7.5 Visit Specs
  24. 24 WordRake
    Free trial Windows · macOS
    7.2 Visit Specs
  25. 25 Monostyle
    Linux
    7.1 Visit Specs
How this list is ordered. Specifiction scores each tool on how fully its maker documents it, whether its prices are published, where the research puts it, the platforms it runs on and whether it can be tried for free (how we rank). Makers can also buy a numbered place (how Specifiction is paid for).

API access and team workflow are useful dimensions when checks need to fit into shared processes; free-plan availability and paid-from pricing add cost context. Sapling, DeepL Write, and StyleMCP are among the named options, as are Vale and Hemingway Editor. Consider which writing controls matter to your work, and whether you need team coordination, specific editor support, or a way to manage preferred terminology.

Compare DeepL Write and JSS Style Checker Get a place on this list

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