Your data lives on someone else's server

    The Writer's Knife is the answer

    Every document you upload, every query you make, every draft you write gets stored on servers you don't control. Cloud tools mine your work for training data, sell usage analytics, and expose you to breaches. Offline tools run entirely in your browser. Your files never leave your machine.

    The Writer's Knife is a single-file knife with 5 tools that runs entirely in your browser. The Writer's Knife puts five essential writing utilities into a single HTML file that works offline, forever. Count words and characters with reading/speaking time estimates, analyse readability with Flesch-Kincaid, Gunning Fog, and Coleman-Liau scores, score your headlines for emotional impact, preview Markdown in real time, and transform text between cases — all without an internet connection. Your writing stays on your machine.

    WHAT'S INSIDE

    5 tools in a single HTML file

    Word & Character Counter

    Live word, character, sentence, and paragraph counts with estimated reading and speaking times. Tracks with or without spaces.

    Readability Analyser (Flesch, Gunning Fog, Coleman-Liau)

    Paste your text and get Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog Index, and Coleman-Liau scores with grade-level interpretations.

    Headline Analyser

    Score headlines for emotional impact, power words, uncommon words, and optimal length. Get actionable suggestions to improve click-through.

    Markdown Preview

    Write Markdown on the left, see rendered HTML on the right — live. Supports GFM tables, code blocks, task lists, and footnotes.

    HOW IT WORKS

    Three steps. No setup.

    1

    Download the file

    Purchase The Writer's Knife and download a single HTML file. No installer, no account, no setup.

    2

    Open in any browser

    Double-click to open in Chrome, Firefox, Safari, or Edge. Works on any operating system.

    3

    Start working

    Your data stays in your browser's local storage. Nothing is uploaded. Ever.

    COMPLIANCE & GEOGRAPHY
    Global

    Works in any country. No server dependency, no regional restrictions.

    FAQ

    Frequently Asked Questions

    How does The Writer's Knife solve the cloud data privacy problem?

    The Writer's Knife runs entirely in your browser. Every document you upload, every query you make, every draft you write gets stored on servers you don't control. Cloud tools mine your work for training data, sell usage analytics, and expose you to breaches. Offline tools run entirely in your browser. Your files never leave your machine. Word counter, readability analyser, headline scorer, Markdown preview, and text transform. Five tools every writer reaches for, now in one offline file.

    Is my data safe with The Writer's Knife?

    Yes. The Writer's Knife is a single HTML file. It never connects to any server. Your data stays in your browser's local storage on your device.

    What makes The Writer's Knife different from cloud tools?

    Cloud tools require internet, charge subscriptions, and store your data externally. The Writer's Knife is a one-time purchase ($39), works offline, and never transmits data.

    Is The Writer's Knife really just one file?

    Yes. The Writer's Knife is a single HTML file containing 5 tools. Download it, open it in any browser, and start working. No installation, no dependencies, no accounts.

    No cloud One fileOne-time purchase
    Get The Writer's Knife — $39

    Sovereignty as a Service