Free tools
Small tools, no sign-up.
A handful of fast, privacy-friendly utilities for content and SEO work. Everything runs in your browser.
Slug Generator
Turn any title into a clean, URL-safe slug.
UTM Builder
Build campaign-tagged URLs for accurate analytics.
Word & Character Counter
Count words, characters, sentences and reading time.
Japanese Text Checker
Check Japanese character counts, full/half-width mixing, long sentences and reading time, then normalize in one click.
Case Converter
Convert text between upper, lower, title, kebab and snake case.
Meta Tag Generator
Generate SEO title, description and Open Graph meta tags.
SERP Preview
See how your title and description look in Google results on desktop and mobile, with Japanese-aware width checks.
Social Preview
Preview how a link looks when shared on social.
Keyword Grouper
Group a keyword list by shared head term, remove duplicates and export CSV.
Content Calendar Maker
Turn topics and posting days into a publishing schedule, then export CSV or a calendar (.ics) file.
Hreflang Generator
Generate hreflang tags for multi-market, multi-locale pages.
JSON-LD Schema
Build structured data for Organization or Article.
Robots.txt Generator
Compose a robots.txt with rules and a sitemap.
Lorem Ipsum
Generate placeholder text by words, sentences or paragraphs.
OG Image Generator
Design a 1200×630 social share image and download it.
Color Contrast
Check WCAG AA/AAA contrast between two colors.
Color Converter
Convert a color between HEX, RGB and HSL.
Base64 Encode / Decode
Encode or decode text to and from Base64.
JSON Formatter
Pretty-print, minify and validate JSON.