Dev & Data 17 Tools Available 100% Client-Side

Developer & Data Utilities

Format, validate, encode, decode, and transform developer data formats with zero server latency. All tools operate entirely in your web browser with zero server roundtrips, offline caching, and strict data privacy.

Available Utilities in this Category

Showing all 17 utilities

JSON Formatter, Validator & Tree Inspector

Format, validate, beautify, and inspect JSON with custom indentation and tree view.

✓ RFC 8259 compliant parsing with precise line and column syntax error detection

✓ Configurable indentation spacing (2 spaces, 4 spaces, or Tabs) and one-click minification

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JSON to TypeScript Interface & Type Generator

Convert JSON payloads into robust, type-safe TypeScript interfaces and types.

✓ Intelligent type inference for primitive types, nested objects, and heterogeneous arrays

✓ Configurable output modes: TypeScript `interface`, `type` alias, and optional `readonly` modifiers

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JWT (JSON Web Token) Debugger & Claims Inspector

Inspect and decode JWT headers and payloads with live expiration countdown.

✓ Instant client-side decoding of JWT Header, Payload, and Signature components

✓ Live expiration countdown timer and human-readable UTC / Local timestamp conversions

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Base64 Text & Binary File Encoder/Decoder

Encode and decode UTF-8 text or drop binary files to generate Base64 data URIs.

✓ Full UTF-8 Unicode encoding and decoding with complete multi-byte character support

✓ Drag-and-drop file encoder for PNG, JPEG, SVG, WebP, PDF, and audio binaries

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Cryptographic Hash Generator & Checksum Calculator

Compute MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly using Web Crypto.

✓ Real-time calculation of SHA-256, SHA-512, SHA-384, SHA-1, and MD5 hashes

✓ HMAC (Hash-based Message Authentication Code) generator with custom secret keys

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URL Encoder / Decoder & Query Parameter Parser

Encode and decode query strings and parse complex URLs into editable key-value tables.

✓ RFC 3986 percent-encoding and decoding for full URLs and individual query parameters

✓ Interactive Query Parameter Parser with add, edit, delete, and duplicate key capabilities

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Unix / Epoch Timestamp Converter & Timezone Studio

Convert Unix epoch timestamps to ISO 8601, UTC, local date strings, and relative times.

✓ Bidirectional conversion between Unix timestamps (seconds and milliseconds) and formatted dates

✓ Live current Unix epoch timestamp ticker with one-click copy and pause functionality

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Regular Expression (Regex) Tester, Debugger & Cheat Sheet

Test JavaScript regular expressions with real-time capture group highlighting.

✓ Real-time ECMAScript regular expression evaluation with match and capture group highlighting

✓ Full flag toggle support: `g` (global), `i` (case-insensitive), `m` (multiline), `s` (dotAll), `u` (unicode), `y` (sticky)

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SVG to PNG, React Component & Data URI Converter

Convert SVG vectors into high-res PNG, React JSX/TSX components, Data URIs, and optimized markup.

✓ High-resolution SVG to PNG rasterization with custom DPI scaling (1x, 2x, 3x, 4x retina)

✓ Instant conversion to production-ready React (JSX / TSX) components with custom prop pass-through

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Cron Expression Generator & Human Explainer

Create, explain, and validate standard 5-part and Quartz cron expressions with upcoming run schedules.

✓ Interactive schedule builder for Minute, Hour, Day of Month, Month, and Day of Week fields

✓ Real-time plain-English translation converting cryptic expressions into natural human sentences

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SQL Query Formatter, Beautifier & Minifier

Beautify and minify SQL queries for PostgreSQL, MySQL, T-SQL, BigQuery, and SQLite.

✓ Multi-dialect parsing support: PostgreSQL, MySQL, MariaDB, SQLite, Oracle PL/SQL, SQL Server (T-SQL), and BigQuery

✓ Keyword casing transformations: UPPERCASE, lowercase, or Preserve Case for SQL reserved keywords

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JSON to CSV & CSV to JSON Bi-Directional Converter

Bi-directional conversion between JSON arrays and CSV/TSV spreadsheets with RFC 4180 compliance.

✓ Bi-directional conversion: Instant JSON-to-CSV and CSV-to-JSON with auto-sync and real-time validation

✓ RFC 4180 compliant CSV parser handling escaped double quotes, line breaks within cells, and custom delimiters (comma, semicolon, tab, pipe)

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HTML & XML Formatter, Validator & Beautifier

Beautify, validate, and minify HTML5, XML, SVG, and RSS documents with syntax error detection.

✓ Dual format engine: Beautify and validate both HTML5 (void tags, boolean attributes) and strict XML documents

✓ Configurable indentation (2 spaces, 4 spaces, Tabs) with smart attribute wrapping and self-closing tag handling

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cURL Command to Fetch, Axios, Python, Go & PHP Converter

Transform cURL commands into JavaScript Fetch, Axios, Python Requests, Go, and PHP client code.

✓ Multi-target code generation: JavaScript (Fetch, Axios), Python (Requests, HTTPX), Go, PHP (cURL, Guzzle), Rust (Reqwest), and Dart

✓ Intelligent AST parser for complex cURL flags: --data-raw, -d, -H, -u, -X, --cookie, --compressed, and multi-line syntax

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YAML to JSON & JSON to YAML Bi-Directional Converter

Bi-directional YAML to JSON and JSON to YAML converter with syntax validation and schema formatting.

✓ Bi-directional instant conversion between YAML 1.2 specifications and standard RFC 8259 JSON

✓ Automatic type preservation: handles strings, integers, floats, booleans, nulls, anchors, and multiline folded (>) / literal (|) strings

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Side-by-Side Visual Code & Text Diff Inspector

Compare code and text with side-by-side visual diffs, character-level highlighting, and whitespace controls.

✓ Split side-by-side and unified inline diff viewing modes with synchronous scroll locking

✓ Granular character-level and word-level change highlighting within modified lines

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Linux Permissions & Chmod Numeric/Symbolic Calculator

Interactive Linux permissions calculator for octal (755, 644) and symbolic (rwxr-xr-x) modes with special bits.

✓ Interactive permission grid for Owner (User), Group, and Others with Read (r=4), Write (w=2), and Execute (x=1)

✓ Bi-directional instant calculation: click checkboxes to update octal/symbolic notation, or type numeric octal (e.g. 755) to update checkboxes

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