Free Writing Tools for Fiction Authors
Polish a draft before you publish, or use these tools while you write books free with AI on EntangledText. 46 browser tools for manuscript checks, planning, and Kindle/KDP formatting. No login on most tools.
From Entangled Text — AI book-writing studio. Every tool runs locally in your browser; nothing is uploaded.
Manuscript Cleanup Report
One scan for filter words, adverbs, passive voice, dialogue tags, readability, and show-don't-tell — with a priority list of what to fix first. One report covers filter words, adverbs, passive voice, clichés, readability, and more.
No tools match your search. Try “filter”, “chapter”, or “KDP”.
Manuscript Analysis
Manuscript Cleanup Report
One scan for filter words, adverbs, passive voice, dialogue tags, readability, and show-don't-tell — with a priority list of what to fix first.
UpdatedFilter Word Finder
Find crutch words AI prose overuses — very, really, just, suddenly, felt — with category filters, density scoring, and rewrite tips.
Adverb Counter
Count -ly adverbs, highlight top offenders, and see density per 1,000 words.
Passive Voice Scanner
Flag likely passive constructions (was/were + past participle, by the…).
Dialogue Tag Analyzer
Ratio of said/asked vs fancy tags and adverbs attached to speech tags.
Sentence Rhythm Report
Average sentence length, histogram, and flags for monotonous rhythm.
Paragraph Length Analyzer
Spot walls of text and one-line paragraphs that hurt pacing on screen.
Readability Scores
Flesch reading ease, grade level, and avg words per sentence for your manuscript.
Word Frequency Finder
Top repeated words (excluding common stopwords) to catch AI repetition.
Show Don't Tell Hints
Pattern match on emotion labels and telling phrases editors flag in AI drafts.
Opening Hook Checklist
Score your first 250 words against fiction opening best practices.
Cliché & Overused Phrase Finder
Flag tired phrases in fiction — heart pounded, couldn't help but, icy stare, and dozens more AI crutches.
Sensory Detail Scanner
Count sight, sound, smell, touch, and taste cues per 1,000 words — spot white-room prose and missing senses.
Word Echo Finder
Catch the same word repeated within a few sentences — a common AI tic readers notice before you do.
Redundancy Phrase Finder
Flag tautologies and pleonasms — nodded his head, stood up, shouted loudly, and other padding.
Dialogue vs Narration Ratio
Measure how much of your manuscript is spoken dialogue versus narration — balance talky vs silent scenes.
Chapter Ending Hook Checker
Score the last ~120 words of each chapter for cliffhangers, concrete images, and anti-wind-down patterns.
Structure & Planning
Chapter Word Count Planner
Target novel length → suggested chapter count and words per chapter.
Three-Act Beat Sheet
Fillable Save-the-Cat style beat sheet with word-percent targets. Copy or print.
Scene Planning Worksheet
Goal, conflict, outcome, and POV for each scene — stack as many rows as you need.
KDP Page Count Estimator
Estimate print pages from word count and trim size for KDP planning.
Back-Cover Blurb Builder
Fill in story slots — get a structured 150-word blurb template (no AI).
NewKindle Description Generator
Draft two genre-aware Amazon product descriptions from your title and pitch — powered by Kestrel — Free. Optional cover upload resized to 1600×2560 px in your browser.
Title & Subtitle Length
Character counts for Amazon/KDP title and subtitle field limits.
Series Bible Template
Character, world, and timeline fields for series continuity. Copy when done.
Character Arc Worksheet
Map want, need, lie, ghost, flaw, and turning points — copy as Markdown for your story bible.
Query Letter Builder
Fill in hook, synopsis, comps, and bio — get a structured agent query draft (no AI).
NewAI Query Letter Generator
Draft a professional literary agent query letter from your hook, synopsis, comps, and bio — powered by Kestrel — Free.
NewAI Character Profile Generator
Turn rough character notes into a story-bible profile with voice, goals, relationships, and continuity flags — powered by Kestrel — Free.
NewLitRPG Character Sheet Generator
Build a game-system status screen by hand — like Story Studio’s insert block — then export markdown, HTML, PNG, Discord, and more. Optional AI layouts via Kestrel — Free restyle presentation only.
NewAI Book Title Generator
Eight marketable title and subtitle ideas from your premise — with Amazon search previews, KDP length checks, and trademark lookup links.
AI Character Portrait Generator
Generate a reference portrait of your character from a description — Grok image, free tier.
Consistency & QA
AI Chapter Recap Generator
Paste a chapter — get a running \"story so far\" summary and key facts for continuity — powered by Kestrel — Free.
Character Name Variant Detector
Find similar capitalized names (John/Jon) that may be AI inconsistencies.
Day & Time Reference Extractor
List weekdays, dates, and time phrases for timeline continuity checks.
POV Slip Detector
Flag paragraphs mixing first-person and third-person pronouns.
Proper Noun Extractor
Export a sorted list of capitalized names and places from your manuscript.
Manuscript Diff
Compare two pasted versions word-by-word — see what changed between edits.
Format & Export
Smart Quote Normalizer
Straight quotes → curly quotes, dashes, and ellipsis cleanup for submission.
Scene Break Standardizer
Normalize scene breaks to consistent *** or # markers.
Chapter Heading Formatter
Renumber and normalize "Chapter N" headings across your manuscript.
Plain Text to Markdown Chapters
Split on "Chapter X" lines and output Markdown with H1 headings.
Kindle & KDP Book Formatter
Format DOCX, TXT, MD, or EPUB for Kindle Direct Publishing — validated EPUB, print PDF, DOCX, a KDP upload ZIP with metadata & blurb, and AI cover art at 1600×2560 px.
AI Book Cover Generator
Generate KDP-ready cover art from a prompt or your own photo. Add title, author, and series with genre typography templates, drag text into place, and download at 1600×2560 px.
NewAI Manga Studio
Free AI manga generator and webtoon maker in your browser: panel templates, AI artwork, speech bubbles, book outline, and export to PDF, CBZ, webtoon strips, or EPUB. Try the demo with zero AI tokens.
NewAI Comic Studio
Free AI comic book and web novel studio in your browser: US comic layouts, AI panel art, speech bubbles, chapter outline, and export to PDF, CBZ, vertical strips, or EPUB. Turn prose into comics — try the demo with zero AI tokens.
Also from Entangled Text
Start your novel
Genre, premise, outline, and your first chapter — guided step by step. Or keep polishing with 46 free browser tools above.
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Frequently asked questions about our writing tools
Are these writing tools really free?
Yes. Every tool on this page is free with no account required. There are no usage limits or paywalls.
Is my manuscript uploaded to your servers?
No. Analyzers and transformers run entirely in your browser. Your text never leaves your device unless you copy it elsewhere.
Do these tools use AI?
Most analyzers and formatters are rule-based — not generative AI. AI Manga Studio and the book cover generator include optional AI art generation; layout, lettering, and export run in your browser.
What is the best tool to start with?
Try the Manuscript Cleanup Report for a full snapshot (filter words, adverbs, passive voice, readability). Then drill into individual checkers for the metrics that scored highest.
Who are these tools for?
Fiction authors polishing AI-assisted drafts, self-publishers preparing KDP manuscripts, and writers who want quick prose diagnostics before hiring an editor.
Can I use these tools on a full novel?
Yes. Paste a chapter or an entire manuscript. Very large texts may slow your browser slightly, but nothing is sent to our servers.
How do these compare to Grammarly?
Grammarly targets general grammar. These tools target fiction craft: dialogue tags, show-don't-tell, chapter pacing, KDP metadata, and series continuity — tuned for novelists.
Machine-readable summary for AI assistants: llms.txt