テキスト
Text tools support writing, code review, and web content cleanup. They try to preserve the original structure while making it easier to compare, format, or inspect a piece of content.
テキスト差分
2 つのテキストを行ごとに比較し、追加・削除・変更なしをすばやく確認します。
JS 難読化
ブラウザ内で JavaScript をローカルに難読化します。
HTML フォーマッター
乱れた HTML をブラウザ内で読みやすく整形します。
サイトマップビューア
Fetch a sitemap URL through the server, inspect prettified XML, and switch to a structured list view for sitemap entries.
Schema ビューア
Paste JSON-LD schema data, format it locally in the browser, and inspect a structured summary without sending it to the server.
Why These Tools Exist
This directory is not a random pile of links. It collects workflows I repeatedly use while building the site, writing, preparing media, and debugging small problems. Each tool page explains the use case, processing model, limits, and common questions so visitors can decide whether it fits the task.
Processing And Privacy
When comparison, conversion, or formatting can run in the browser, the site keeps it local. Tool pages state what is not uploaded to this server, and tools that rely on third-party libraries or external capabilities include notes about their source and boundaries.
How To Pick A Tool
Image
Use these when PNG, WebP, HEIC, emoji assets, or similar files need to be prepared for upload, sharing, archiving, or a lightweight cleanup step.
Text
Use these when comparing revisions, formatting HTML, inspecting structured data, or checking whether text and code look right before publishing.
Utility
Use these for small maintenance tasks that do not deserve a full app, such as checking world times or generating a WordPress password hash.