FediWriMo

Just as the title says. It's here (I used the SFW instance for it, just in case).

I'll list the tools here. Recommendations are in bold from the creators of this thing. Italics are my recommendations if any are missing. Bold italics are for community recommendations that fit a particular category. Some apps are proprietary, but there are a few like that here.

Note: This is a living post, and unless something happens, I'll keep this one updated with as much information as the community recommends if I missed anything.

Distraction-Free Writing

• Writer (https://www.gibney.org/writer)
• FocusWriter (https://gottcode.org/focuswriter/)
• Writemonkey (https://writemonkey.com/)
• blank.page (https://blank.page/)
• Telegraph (https://telegra.ph/)
• Aurelius (https://aurelius.ink/)
• ZenPen (https://zenpen.io/)
• Write.as (https://write.as/)
• Owri (https://owri.netlify.app/)
• WriteSpace (https://www.writespace.app/)
• WriteNext (https://www.writenext.io/)

Writing Organizer/Planner

• Manuskript (https://www.theologeek.ch/manuskript/)

Novel Editors

• novelWriter (https://novelwriter.io/)
• Bibisco (https://bibisco.com/)

Journal Apps

• Linked (https://uselinked.com/)
• journaltxt (https://journaltxt.github.io/)
• Gekri (https://gekri.com/)
• Microsoft Journal (https://www.microsoft.com/en-us/garage/profiles/journal/)
• Diarium (https://diariumapp.com/)
• jrnl.sh (https://jrnl.sh/)

Story Writing Tips/Guides

• TV Tropes Guide (https://tvtropes.org/pmwiki/pmwiki.php/SoYouWantTo/SeeTheIndex)

VN Editors (If one's into creating VNs)

• Tuesday JS (https://kirill-live.itch.io/tuesday-js)
• RenPy (https://www.renpy.org/)

Novel Plotting / Editing Workspaces

• Fortelling (https://www.fortelling.app/)
• Novelist (https://beta.novelist.app/)

Collaborative Writing / Feedback

Note: Unattributed might want to consider a collab NaNo if that exists

• Infinite Story (https://infinite-story.com/)
• Strand (https://strand.jinay.dev/)
• Agora (https://www.agorawriter.com/)
• WriteAlong (https://www.writealong.io/)
• Collabora (https://www.collaboraonline.com/collabora-office)

Worldbuilding / Story Writing

• Gateway Forge (https://gatewayforge.com/)
  • Modules therof (https://gatewayforge.com/resources)
• Chronicler (https://chronicler.pro/)

Writing Prompts

• LanguagelsAVirus (https://www.languageisavirus.com/)
• MDWA (https://www.squibler.io/dangerous-writing-prompt-app)

Interactive Non-Linear Story Creation

• Twinery (https://twinery.org/)

User Story Map Generation

• TextUSM (https://textusm.com/)

Interactive Essay Creation

• Idyll (https://idyll-lang.org/editor)

Script/Screen Writing Tools

• Story Architect (STARC) (https://starc.app/)
• WriteSolo (https://www.writersolo.com/)
• Celtx (I used this one on iOS) (https://www.celtx.com/)

Webcomics Templating

• Rarebit (https://rarebit.neocities.org/)

Spoken Language Construction Tools

• PolyGlot (https://draquet.github.io/PolyGlot/)
• VulgarLang (https://www.vulgarlang.com/)

Annotations

• How to annotate literally anything (https://beepb00p.xyz/annotating.html)
• Label Buddy (https://jeromedockes.github.io/labelbuddy/labelbuddy/current/)
• rNote (https://rnote.flxzt.net/)

Thesis Writing / Note-Taking

• MosnterWriter (https://www.monsterwriter.com/)

All of the above, maybe....

• Obsidian (https://obsidian.md/)
• Vim/Neovim (https://www.vim.org/ or https://neovim.io/)

Community Recommendations

• Joplin (https://joplinapp.org/) [Rec by Unattributed, local-first]
• Standard Notes (https://standardnotes.com/) [Rec by Unattributed, local-first]
• LyX (https://www.lyx.org/) [Rec by Unattributed, local-only]
• GNU Emacs (https://www.gnu.org/software/emacs) [Rec by Unattributed, local-only (maybe local-first, depending on the plugins)]
• Vim/Neovim (https://www.vim.org/ or https://neovim.io/) [Rec by Unattributed, local-only unless local-first through plugins]
• LibreOffice (https://libreoffice.org/) [Rec by Unattributed, local-only unless through web client]
• Collabora (https://www.collaboraonline.com/collabora-office) [Rec by Unattributed, local-first, collaborative online shenanigans when online]
• Zettlr (https://www.zetler.com/) [Rec by Unattributed, local-first]
• LanguageTool (https://languagetool.org/) [Rec by brucethemoose, not necessarily local-first though self-hostable, otherwise, someone else's mercy]
• Harper (https://writewithharper.com/) [Rec by me, local-only in Obsidian, local-first on Firefox)

Hope this helps.