NicheWorks

About This Site

NicheWorks is a quiet, ongoing project that collects small but genuinely useful web tools. The focus is not on flashiness or trends, but on practicality and longevity.

→ More about the philosophy and background is available on the About page.

Tool List

Text & Document Tools

Lightweight utilities for text processing, log formatting, and quick document-related tasks.

• ManualFinder
  Official manual links for electronics, cameras, and more.
• TrashNavi
  Official municipal waste-sorting guidelines.
• LogFormatter
  Format Nginx/HTTP logs in your browser.
• Rename Wizard
  Bulk rename preview tool.
• Contract Cleaner
  Highlight risky terms in contracts.
• EXIF Cleaner Mini
  Remove EXIF data locally.
• LineBreak Doctor
  Fix unwanted line breaks for social media posts.
• URL Title Collector
  Fetch page titles from multiple URLs at once.
• Message Generator
  Generate short text templates.

Image & File Utilities

Tools for converting, analyzing, and inspecting images or file contents.

• Image Compression Inspector
  Compare compression efficiency across formats.
• Color Replace
  Replace a specific color in an image.
• WebP / AVIF Converter
  Convert images to lightweight formats.
• FileType Sniffer
  Analyze file signatures to determine type.

Conversion & Visualization Tools

Utility tools for data conversion, structural visualization, and format transformation.

• JSON → Mermaid
  Automatically visualize JSON structures.
• UnitMaster
  High-speed conversion among many units.
• Kanji Modernizer
  Old → modern character conversion.
• Old Kanji Reference
  Dictionary of traditional forms.
• Redirect Unwrapper
  Reveal the final destination of shortened URLs.

Everyday & Practical Tools

Simple tools designed to support everyday tasks and quick lookups.

• JP Postal Lite
  Look up addresses by postal code.
• Cancel Navi
  Official cancelation pages for major services.

Additional Utilities

Miscellaneous lightweight tools that provide extra convenience and support.

• WeatherDiff
  Compare forecasts from multiple APIs. Supports location input & geolocation.
• WiFi Meter
  Visualize nearby Wi-Fi congestion.
• Cover Letter Lite
  Generate short English cover letters.
• Cosmetic Ingredient Checker Lite
  Simple ingredient lookup tool.

Project Policy

Most tools work entirely inside your browser. No data is uploaded to any server unless clearly stated.