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73+ tools shipped · v1.0

Every tool a developer needs. Oneplace.

Free, instant, no signup. Format JSON, decode JWTs, generate UUIDs — all locally in your browser. Bookmark once, ship faster forever.

73+ tools100% freeno signupruns in browser
Showing 20 of 73 tools
JSON Formatter & Validator
Format, validate and beautify JSON online. Instant results, no signup required.
formatters
Base64 Encode / Decode
Encode and decode Base64 strings instantly in your browser. UTF-8 safe.
encoding
URL Encode / Decode
Percent-encode or decode URL strings online. Supports query params and full URLs.
encoding
HTML Encode / Decode
Encode HTML entities or decode them back. Escape <, >, & and other special characters.
encoding
JWT Decoder
Decode and inspect JSON Web Tokens. View header, payload and expiration status.
security
Hash Generator (MD5, SHA-1, SHA-256, SHA-512)
Generate cryptographic hashes of any text. Supports MD5, SHA-1, SHA-256 and SHA-512.
security
UUID Generator
Generate UUID v4 identifiers. Bulk generate up to 1000 at a time.
generators
Word & Character Counter
Count words, characters, sentences and reading time of any text.
text
New
Regex Tester
Test JavaScript regular expressions in real time. View matches and capture groups.
text
New
Cron Expression Builder & Explainer
Build and explain cron expressions in plain English. Preview the next scheduled runs.
reference
New
JSON ↔ CSV Converter
Convert between JSON arrays and CSV files. Customizable delimiter and header handling.
converters
New
JSON ↔ YAML Converter
Convert between JSON and YAML formats with proper indentation and types.
converters
New
SQL Formatter & Beautifier
Format SQL queries. Supports PostgreSQL, MySQL, SQLite, MariaDB, BigQuery and more.
formatters
New
Text Diff Checker
Compare two text snippets and see the differences highlighted line by line.
text
New
Color Picker & Converter
Pick a color and convert between HEX, RGB, and HSL formats instantly.
generators
New
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences, or words.
generators
New
Markdown Previewer
Live preview Markdown as you type. Supports GitHub-flavored Markdown.
formatters
New
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back. Live current timestamp included.
converters
New
Number Base Converter
Convert numbers between Binary, Octal, Decimal, and Hexadecimal. Arbitrary precision via BigInt.
converters
New
CSS Minifier & Beautifier
Minify or beautify CSS code. See byte savings and copy results in one click.
formatters
New · Embeds

Embed any tool on your own site

Writing a tutorial, docs, or internal wiki? Drop a live JSON formatter, JWT decoder, or any of 73 tools into your page with one line of HTML — free, private, and it runs right in your reader's browser.

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Why ilovedev

Built like the tools you wish you had.

No trackers. No popups. No “sign up to copy”.

Fast

Runs entirely in your browser. No server round-trips, no upload spinners. <50ms from paste to result.

p99 parse · 23ms

Private

Your data never leaves the tab. No logs, no analytics on payloads. Open the network tab — we'll wait.

Zero bytes sent · Local only

Free

Every tool is free, forever. No paywall, no sign-up, no upsell — just the utilities you need in the tab you already had open.

Core tools · $0 forever
The ilove* ecosystem

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