AI · alternatives · 2026

24 alternatives to Writefull Thesaurus

A Google Docs add-on that uses AI to give you synonyms

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Writefull Thesaurus launched in 2017; newer entries below may have overtaken it.

1. 1
   Semantic AI▲97

   The fullstack AI writing suite, that gives you back control

   2023 · semanticai.app · its alternatives →

2. 2
   Writingmate▲454

   AI copilot for Google Docs, Slides, Sheets with 20k+ users

   2023 · chromewebstore.google.com · its alternatives →

3. 3
   Thesaurus Pro▲74

   The Google Docs thesaurus add-on that doesn't suck.

   2016 · its alternatives →

4. 4
   Writeasily▲81

   Write better marketing copy and content with AI

   2023 · writeasily.com · its alternatives →

5. 5
   Power Thesaurus▲78

   A crowdsourced thesaurus

   2015 · powerthesaurus.org · its alternatives →

6. 6
   Simpler.ai▲95

   AI-powered writing made simple, distraction-free

   2023 · simpler.ai · its alternatives →

7. 7
   Compose AI▲234

   Cut your writing time by 40% with AI writing assistant

   2022 · launch.compose.ai · its alternatives →

8. 8
   Writefull Academizer▲70

   Making any informal sentence academic

   2022 · x.writefull.com · its alternatives →

9. 9
   Research PAL▲74

   AI-Powered research assistant for Google Docs

   2023 · its alternatives →

10. 10
    Keyword Insights▲187

    Not another AI writing assistant

    2023 · keywordinsights.ai · its alternatives →

11. 11
    writeup.ai▲117

    A bot that writes your mission statement with you

    2019 · writeup.ai · its alternatives →

12. 12
    Plus AI for Google Docs▲70

    The easiest way to write with AI directly in Google Docs

    2024 · plusai.com · its alternatives →

13. 13
    boo.ai▲100

    Beautifully simple writing app with a built-in AI copywriter

    2022 · boo.ai · its alternatives →

14. 14
    Words For That ▲115

    the reverse-Urban Dictionary of the internet

    2014 · wordsforthat.com · its alternatives →

15. 15
    Aify.co▲69

    New AI writing tools for bloggers and professionals

    2023 · aify.co · its alternatives →

16. 16
    QuillBot▲78

    Make writing painless by using AI paraphrasing technology

    2021 · quillbot.com · its alternatives →

17. 17
    Writely AI▲75

    Write more content, with less time

    2022 · writelyai.com · its alternatives →

18. 18
    Smart Write & Edit by Mem X▲130

    A personalized AI assistant for thinking and writing

    2022 · get.mem.ai · its alternatives →

19. 19
    Conversion.ai▲114

    AI writing assistant that eliminates writers block for good

    2021 · conversion.ai · its alternatives →

20. 20
    AI Writer▲90

    Your intelligent co-pilot in content creation

    2023 · ai-writer.com · its alternatives →

21. 21
    Linguix Writing Assistant (ex-Textly.ai)▲124

    Eliminate mistakes in your writing anywhere on the web

    2019 · linguix.com · its alternatives →

22. 22
    Notly▲90

    The world's most advanced AI writing assistant for Notion

    2022 · getnotly.com · its alternatives →

23. 23
    Write Panda▲106

    Write your best copy easily with AI - write like a genius

    2023 · writepanda.ai · its alternatives →

24. 24
    Writery AI▲85

    AI SEO writing generator to rewrite, summarize, paraphrase

    2023 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →