K3N8HDigital Tools
Small, sharp utilities that run entirely in this browser — no install, no upload, no account.
General-purpose mini-bots and SaaS tools useful to almost any niche on this site: text analysis, password generation, invoicing, and budgeting. Every tool computes locally in your browser; nothing you type is ever uploaded.
Tools for Digital Tools
Every product here is a small, sharp browser utility, free and instant: Text Toolkit gives live word/character counts, reading time, and a real Flesch readability score as you type; Password Toolkit generates passwords with your browser's actual cryptographic RNG and estimates real entropy; Invoice Generator builds an itemized invoice with live totals and a working print-to-PDF flow; Budget Planner turns income and expenses into a savings rate and spending chart, auto-saved to your browser; QR Code Generator produces real, scannable codes using an audited encoding library; Color Palette Generator derives palettes from real HSL hue-rotation color theory, not random colors; and Unit Converter uses stated, correct conversion factors for length, weight, volume, and temperature.
S tier
Solo / individual
Text Toolkit
A private writing studio: readability, keywords, summaries, tracked fixes, headline scoring and saved drafts.
Explain Like I'm 5
Plain-language explanations for five reading levels, from age 5 to expert. Runs entirely in your browser: no account, no AI service.
Password Toolkit
Secure generators, an honest strength analyser, site-rule checker and AES encryption, in your browser.
Finance Auditor
Run the first-pass tests an auditor reaches for — Benford, duplicates, split payments, cut-off and more — on a ledger or bank file, and print a working paper. Private.
Money Manager
A double-entry ledger with the three financial statements, ratios, a 13-week cash forecast, budgets and a month-end close. Private, on your device.
QR Code Generator
A full QR studio in your browser: Wi-Fi, contacts, events, logos, print sheets and batch ZIPs. No upload.
Color Palette Generator
Palettes from colour theory or mood, with locks, contrast and colour-blind checks, 50-950 scales and exports.
Unit Converter
Exact conversions for 15 kinds of units, cups to grams, plain-text input, your own units and your own rates.
Plain English to Code Translator
Describe a task or paste Python or JavaScript, then run it, translate it, have it explained in plain English and practice writing it. Runs in your browser: no account, no AI service.
Quiz Studio
Turn your notes into quizzes, design a printable paper and give online exams. The notes quiz is free; Quiz Studio Pro is free for 30 days, then $49 a year.
Terminal
A practice terminal in your browser: a virtual file system, shell commands, a file editor, and node and python runners for beginner programs.
K3N8H Essentials (Supporter Edition)
Budget planner, money manager, finance auditor, invoices, passwords and more in one app that works offline. Support K3N8H from $1.
M tier
Small team
Invoice Generator
Invoices, quotes and receipts with saved clients, tax, deposits and print-ready PDFs. Private, no account.
Budget Planner
Plan each month with four budgeting methods, goals, debt payoff and bank CSV import. Private and free.
Data Analyst Workbench
Load CSV, Excel or JSON, clean it with a re-runnable recipe, pivot, query with SQL, chart it and get plain-language insights. Private, no account.
Model Lab
Train regression and classification models in your browser and score them honestly, from linear and logistic to trees, forests and boosting. Private, no account.
Typing Tutor
A real, structured touch-typing course — home row to full paragraphs, live finger-position guide, real WPM/accuracy math.
Frequently asked questions
Do any of these tools upload what I type or the files I generate?
No — every tool here computes entirely client-side in your own browser. Nothing you type into Text Toolkit, Password Toolkit, Invoice Generator, or Budget Planner is ever sent to a server.
Is the Password Toolkit's random generator actually cryptographically secure, or just a demo?
It's real — it uses the Web Crypto API's crypto.getRandomValues, the browser's actual cryptographic RNG, not a demo or a pseudo-random fallback.
Does Password Toolkit check my password against real breach databases?
No — its strength check is an entropy estimate plus a common-password check, not a lookup against a real breach database. That's stated in the tool's own disclaimer.
Can I white-label any of these tools for my own site?
Yes — every tool in this niche offers a separate commercial "Embed / White-Label License" on top of free personal use.
Does Budget Planner's saved data sync across my devices?
No — it auto-saves only to the browser and device you used it on. There's no account or cloud sync, so it won't appear on a different browser or device.