Code, Data & Formatting

Developer Utilities

Format, beautify, minify, and validate JSON, encode/decode Base64, URLs, and HTML entities, test regex, generate UUIDs, SHA hashes, passwords, and Lorem Ipsum, build Cron schedules, convert timezones, and diff text locally.

JSONEncodingProgrammingDate & TimeText
24 tools
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JSON

JSON Formatter & Beautifier

Format, beautify, minify, and inspect JSON payloads with configurable indentation, alphabetical key sorting, and byte compression metrics.

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JSON

JSON Validator

Validate JSON syntax against RFC 8259 standards, pinpoint exact line-number parse errors, and inspect object nesting depth and key counts.

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Encoding

Base64 Encoder & Decoder

Encode UTF-8 text to Base64 or decode Base64 strings back to plain text with full Unicode safety and RFC 4648 URL-safe mode.

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Programming

UUID v4 Generator

Generate cryptographically random RFC 4122 version 4 UUIDs in bulk with toggles for hyphens, uppercase hex, and braces.

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Programming

Regex Tester & Debugger

Test JavaScript regular expressions in real time against sample strings with capture-group inspection and presets for PAN, IFSC, Email, and Mobile.

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Programming

Password Generator

Generate high-entropy cryptographic passwords using Web Crypto CSPRNG with real-time entropy bit scoring and offline crack-time estimation.

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Date & Time

Unix Timestamp Converter

Convert Unix epoch timestamps (seconds or milliseconds) to ISO 8601, UTC, and local IST dates—or convert dates back to epoch numbers.

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Text

Word & Character Counter

Count words, characters (with and without spaces), sentences, paragraphs, reading/speaking time, and top keyword frequency in real time.

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JSON

JSON Beautifier

Pretty-print compact or minified JSON strings with clean 2-space or 4-space indentation and optional alphabetical key sorting.

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JSON

JSON Minifier

Compress JSON payloads by stripping all unnecessary whitespace and newlines, and measure exact byte savings.

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Encoding

Base64 Decoder

Decode standard or URL-safe RFC 4648 Base64 strings back into UTF-8 plain text locally in your browser.

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Encoding

URL Encoder

Percent-encode query parameters, special symbols, and UTF-8 characters for safe transmission in URLs and query strings.

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Encoding

URL Decoder

Decode percent-encoded (%20, %3A, %2F) URLs and query strings back into readable plain text.

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Encoding

HTML Entity Encoder

Escape raw HTML tags and special characters (<, >, &, ", ') into safe HTML entities for code blocks and templates.

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Encoding

HTML Entity Decoder

Unescape HTML entities (&lt;, &gt;, &amp;, &quot;, &#39;, &#8377;) back into raw characters.

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Programming

Hash Generator (SHA-256, SHA-512, MD5)

Generate SHA-256, SHA-512, SHA-384, SHA-1 and MD5 hexadecimal digests locally in your browser. Nothing is uploaded.

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Programming

Lorem Ipsum Generator

Generate clean placeholder paragraphs, sentences, or word counts for UI wireframes, typography tests, and landing page mockups.

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Date & Time

Timestamp Converter (ISO 8601 & Epoch)

Convert between ISO 8601 date strings, UTC timestamps, local IST dates, and 10/13-digit Unix epoch numbers.

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Date & Time

Cron Expression Generator & Explainer

Build and translate 5-field Linux crontab schedules into plain English and systemd OnCalendar timer rules.

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Date & Time

Timezone Converter (IST, UTC, ET, PT, GMT, SGT)

Convert any ISO date-time simultaneously across India (IST), UTC, US Eastern/Pacific, London, Dubai, Singapore, and Tokyo.

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Text

Character Counter

Count exact characters (with and without spaces), byte length, words, lines, and sentences for SEO titles, meta descriptions, and social posts.

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Text

Case Converter (camelCase, snake_case, kebab-case)

Convert any text or identifier simultaneously into camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, and UPPER/lowercase.

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Text

Duplicate Line Remover

Remove duplicate lines from lists, logs, CSVs, or URLs with toggles for case sensitivity, whitespace trimming, and alphabetical sorting.

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Text

Text Difference Checker (Diff Tool)

Compare two text blocks or config files line by line to highlight added, removed, and unchanged lines.

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Category Overview

Developer tools that never upload your payloads

Pasting production JSON payloads, tokens, or config files into server-backed websites risks exposing sensitive secrets. Every UtilAxis developer utility executes strictly inside your local browser runtime using native Web Crypto, Intl, and V8 APIs.

Common Questions

Frequently Asked Questions — Developer Utilities

Clear answers to common questions about methodology, edge cases, and privacy.

How many developer utilities are available on UtilAxis?

There are currently 24 specialized tools in Developer Utilities, spanning JSON, Encoding, Programming, Date & Time, Text. Every utility executes 100% locally in your browser.

Are my inputs in Developer tools stored on any server?

No. UtilAxis is a static, client-side platform. All calculations, code formatting, and file conversions happen inside your device's browser memory with zero server uploads.

Can I bookmark or share my Developer calculations?

Yes. Click 'Save to Workspace' on any tool header to pin it to your local Workspace, or use 'Copy share link' to generate a URL pre-populated with your scenario parameters.