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開発者、クリエイター、SEO、日常の計算、画像処理、生産性向上のためのブラウザベースユーティリティ。

Utiloom offers a growing library of 153+ free online tools organized into 10 categories. Every tool runs directly in your browser — your data stays on your device, and there is no account or installation required. Use the search bar or category filter above to find exactly what you need.

Showing 1-30 of 32

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開発者

開発者 you can use right away

Format code, encode values, convert timestamps, and inspect text faster.

32 tools in this category

開発者

Lottie Embed Generator

Generate copy-ready Lottie embed code.

開発者

Lottie JSON Minifier

Minify Lottie JSON for smaller delivery payloads.

開発者

ASCII Table

Look up ASCII codes and characters quickly.

開発者

Text to ASCII Converter

Convert text to ASCII decimal or hex with a browser-based ASCII converter.

開発者

ASCII to Text Converter

Convert ASCII codes back to text.

開発者

What Is My IP

Find your public IP and basic network details.

開発者

JSON Diff

Compare JSON objects key by key.

開発者

Regex Tester

Test regex patterns and flags in the browser.

開発者

CSV to JSON Converter

Turn CSV data into JSON objects.

開発者

JSON to CSV Converter

Convert JSON objects to CSV.

開発者

YAML to JSON Converter

Switch between YAML and JSON formats quickly.

開発者

XML to JSON Converter

Convert XML data to JSON.

開発者

SQL Formatter

Beautify SQL queries instantly.

開発者

HTML Formatter

Beautify HTML markup online.

開発者

CSS Minifier

Minify CSS instantly online.

開発者

JS Minifier

Minify JavaScript online.

開発者

Hash Generator

Create MD5, SHA-1, SHA-256, and SHA-512 hashes.

開発者

Cron Builder

Create cron expressions with a visual builder.

開発者

Cron Parser

Explain cron expressions in plain language.

開発者

JWT Decoder

Inspect JWT header and payload safely in your browser.

開発者

JSON Formatter

Beautify and validate JSON instantly in your browser.

開発者

Markdown Preview

Preview Markdown as formatted HTML instantly.

開発者

Base64 Encoder

Convert plain text to Base64 safely.

開発者

Base64 Decoder

Decode Base64 strings into plain text.

開発者

UUID Generator

Create UUID v4, v7, and ULID values in the browser.

開発者

Timestamp Converter

Convert Unix time and readable dates both ways.

開発者

User-Agent Parser

Parse user-agent strings into browser, OS, and device details.

開発者

UUID Validator

Validate UUID strings and inspect versions.

開発者

HTML Entity Encoder Decoder

Encode or decode HTML entities instantly.

開発者

JSON to YAML Converter

Turn JSON into readable YAML.

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Full tool index

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テキスト

Work with copy, comparison, URL-safe strings, and text transformations.

SEO

Build search-friendly assets like slugs, canonical/hreflang tags, robots rules, sitemap XML, keyword analysis, schema markup, metadata helpers, and social card tags.

生産性

Support daily planning, timing, and small workflow decisions for real work.

計算

Handle date, age, unit, body, and numeric calculations in a clean browser UI.

ファイル

Clean file names, find duplicates, normalize paths, rebuild folder trees, and preview safe bulk rename rules.