Useful by design

Free tools that solve small problems quickly.

No bloated dashboard. No account for simple work. Most tools run entirely in your browser.

Smart Writing & Productivity

Fast local analysis that feels assistant-like without sending your text to an external AI service.

Word, Character & Reading-Time Counter

Count words, characters, sentences, paragraphs, reading time and approximate reading level instantly.

Free · Local smart tool

Spell & Typo Checker

Catch common misspellings, repeated adjacent words and browser-detected spelling issues without uploading your text.

Free · Local smart tool

Smart Writing Analyzer

Review clarity, sentence length, filler words, repetition and readability with instant local recommendations.

Free · Local smart tool

AI Prompt Quality Coach

Score a prompt for goal, context, constraints, output format, success criteria and examples before you send it to an AI system.

Free · Local smart tool

Prompt Privacy Cleaner

Detect and redact common email, phone, IP, credential-like and identifier patterns before text is pasted into an AI service.

Free · Local smart tool

Key Points Extractor

Pull likely key sentences from long notes, articles and reports using local frequency and position scoring.

Free · Local smart tool

Action Item & Question Extractor

Find likely tasks, follow-ups and unresolved questions in notes or transcripts.

Free · Local smart tool

Meeting Notes Organizer

Organize rough notes into likely decisions, action items, questions and other notes.

Free · Local smart tool

Email Clarity Checker

Check email length, sentence complexity, clear asks, urgency language and basic structure before sending.

Free · Local smart tool

Repeated Word & Phrase Finder

Find repeated adjacent words and frequently reused content words that can make writing feel repetitive.

Free · Local smart tool

Tool disclaimer: Automated results can be incomplete or wrong. Security tools are for systems you own or are authorized to assess. Smart writing tools are local heuristics unless explicitly identified otherwise. Read the full tool-use disclaimer.

Website Security & Diagnostics

Passive public-configuration checks. No exploit attempts, login attacks, port scans or private-network access.

Website Security Headers Checker

Check CSP, HSTS, clickjacking protection, MIME sniffing controls and other browser-facing security headers.

Free · Server-assisted

HTTPS & TLS Certificate Checker

Validate HTTPS and review certificate issuer, dates and expiration.

Free · Server-assisted

HTTP → HTTPS Redirect Checker

Follow the public redirect path and confirm whether HTTP reaches the intended HTTPS site.

Free · Server-assisted

Website Cookie Security Checker

Review Secure, HttpOnly and SameSite flags returned by the public homepage.

Free · Server-assisted

DNS & Email Security Checker

Review A/AAAA, MX, CAA, SPF and DMARC records for the domain.

Free · Server-assisted

Word, Character & Reading-Time Counter

Count words, characters, sentences, paragraphs and estimated reading time.

Free · Browser-based

JSON Formatter & Validator

Validate, format and compact JSON locally in your browser.

Free · Browser-based

URL Encoder / Decoder

Encode or decode URL components.

Free · Browser-based

Base64 Encoder / Decoder

Encode and decode UTF-8 text.

Free · Browser-based

Unix Timestamp Converter

Convert Unix timestamps and human-readable dates.

Free · Browser-based

ISBN-10 / ISBN-13 Validator

Validate and normalize ISBN checksums.

Free · Browser-based

Secure Password Generator

Generate strong random passwords locally using Web Crypto.

Free · Browser-based

SHA-256 Hash Generator

Generate a SHA-256 digest locally with Web Crypto.

Free · Browser-based

URL Slug Generator

Turn titles into clean URL slugs.

Free · Browser-based

Color Contrast Checker

Check WCAG contrast ratios for two colors.

Free · Browser-based

UTM Campaign URL Builder

Build campaign-tagged URLs.

Free · Browser-based

SEO Title & Description Preview

Check title/description length and preview a search-style snippet.

Free · Browser-based

Text Difference Checker

Compare two texts line by line.

Free · Browser-based

Audiobook Duration Calculator

Add chapter durations and estimate total runtime.

Free · Browser-based

Book Spine Calculator

Estimate spine width from page count and paper type.

Free · Browser-based

Text Case Converter

Convert text to upper, lower, title and sentence case.

Free · Browser-based

UUID Generator

Generate RFC 4122 UUIDs locally.

Free · Browser-based

HTML Entity Encoder / Decoder

Encode or decode common HTML entities safely.

Free · Browser-based

Security tools are intentionally passive. They inspect public DNS, HTTPS, redirects, response headers and cookie attributes. They do not attempt to exploit the target. More diagnostics can be added after field testing.