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Engineering Tools Directory

Browse, search, and sort our complete suite of 66 production-grade tools.

85ATS SCORE
⚡ 240K uses

Resume / ATS Score CheckerAI

Analyze your resume against ATS requirements. Receive a detailed score (0-100) and structured tips for success.

AI EnginesLaunch
{}
{ status: 200 }
[data: array]
(cache: hit)
{ id: 4501 }
{ type: 'json' }
{ status: 200 }
[data: array]
(cache: hit)
{ id: 4501 }
{ type: 'json' }
⚡ 120K uses

JSON Formatter & Validator

Format, validate, beautify, and minify your JSON data in real-time with instant syntax error highlighting.

DeveloperLaunch
⚡ 190K uses

AI Resume RoasterAI

Upload your resume and get a witty, brutal, and hilarious roast from our AI detailing design and wording flaws.

AI EnginesLaunch
⚡ 108K uses

JSON to TypeScript Interface

Generate copyable TypeScript interface typings from standard JSON structure schemas.

ConvertersLaunch
SHA-256
550e8400
f81d-4030
9a21-4562
e3b8-6872
SHA-256
550e8400
f81d-4030
⚡ 115K uses

Password Generator & Strength Meter

Generate cryptographically secure random passwords and view real-time strength/entropy estimations.

DeveloperLaunch
⚡ 102K uses

CSS Box Shadow Generator

Visually build CSS box-shadow properties with offset, blur, spread, and color sliders.

MediaLaunch
⚡ 110K uses

QR Code Generator

Generate highly customizable, high-resolution QR codes for URLs, contact details, or text, and download them instantly.

MediaLaunch
⚡ 105K uses

Text Diff Checker

Compare two text blocks side-by-side and highlight additions and deletions line-by-line in real-time.

DeveloperLaunch
⚡ 95K uses

cURL to Fetch Converter

Convert raw cURL CLI requests into browser-compatible JavaScript fetch() scripts.

ConvertersLaunch
UTF-8
⇄
B64 / URL
⚡ 98K uses

JWT Debugger & Parser

Decode JSON Web Tokens instantly to check and parse Header, Payload, and Signature metadata fields.

DeveloperLaunch
UTF-8
⇄
B64 / URL
⚡ 112K uses

Unix Epoch Timestamp Converter

Translate Unix epoch timestamps (seconds/ms) to human-readable dates, and dates back to timestamps.

ConvertersLaunch
⚡ 96K uses

Glassmorphism CSS Generator

Create premium glassmorphic UI design code using backdrop blur, opacity sliders, and borders.

MediaLaunch
⚡ 85K uses

Regex Tester & Visualizer

Write and test regular expressions in real-time with highlight match visualization and capture groups.

DeveloperLaunch
⚡ 88K uses

CSS Gradient Generator

Design linear gradients with dual color picker stops and angles, and output clean copyable CSS style code.

MediaLaunch
⚡ 90K uses

RegEx Cheat Sheet & Generator

Copy common regex tokens, anchors, and brackets with an interactive regex sandbox testing block.

DeveloperLaunch
UTF-8
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B64 / URL
⚡ 84K uses

JWT Generator & Signer

Tweak Header, Payload, and secret parameters to compile mock encoded JWT tokens.

DeveloperLaunch
SHA-256
550e8400
f81d-4030
9a21-4562
e3b8-6872
SHA-256
550e8400
f81d-4030
⚡ 94K uses

UUID / GUID Batch Generator

Generate batches of standard version 4 UUIDs instantly, with customization options for uppercase characters and hyphens.

DeveloperLaunch
⚡ 80K uses

JSON to YAML Converter

Convert JSON configuration objects into clean, indentation-structured YAML files instantly.

ConvertersLaunch
# Header
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> quote
⚡ 83K uses

HTML Sandbox & Live Previewer

Write HTML markup, apply inline CSS styling rules, and preview layout rendering outputs in an iframe.

MediaLaunch
UTF-8
⇄
B64 / URL
⚡ 77K uses

Crontab Expression Descriptor

Translate space-separated crontab schedule expressions into human-readable English text summaries.

DeveloperLaunch
⚡ 76K uses

Base64 Image Decoder & Previewer

Convert encoded base64 image strings into full visual image previews with metadata metrics.

MediaLaunch
UTF-8
⇄
B64 / URL
⚡ 75K uses

Base64 Encoder & Decoder

Instantly encode text into Base64 format, or decode Base64 strings back to standard human-readable UTF-8.

ConvertersLaunch
UTF-8
⇄
B64 / URL
⚡ 91K uses

Number Base Converter

Convert numeric strings between Decimal, Binary, Octal, and Hexadecimal representations.

ConvertersLaunch
⚡ 84K uses

Placeholder Image Generator

Formulate customizable placeholder SVG image files and inline source Data URLs.

MediaLaunch
⚡ 73K uses

Color Contrast WCAG Checker

Evaluate foreground and background color combinations against WCAG accessibility rules.

MediaLaunch
# Header
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⚡ 78K uses

Live Markdown Previewer

Write Markdown code in the live editor and instantly preview the formatted layout output side-by-side.

MediaLaunch
⚡ 72K uses

YAML to JSON Converter

Convert nested YAML configuration blocks back to standard stringified JSON configurations.

ConvertersLaunch
UTF-8
⇄
B64 / URL
⚡ 79K uses

URL Parser & Query Debugger

Dissect a URL string into protocol, host, port, path, and extract a query parameters list.

DeveloperLaunch
⚡ 65K uses

YAML to TOML Converter

Convert indentation-structured YAML parameters to config TOML keys and section headers.

ConvertersLaunch
⚡ 67K uses

Viewport & Screen Resolution Inspector

Measure active client window widths, heights, pixel density ratio, and orientation metrics.

DeveloperLaunch
$€£¥
⚡ 60K uses

Unit & Currency Converter

Convert physical dimensions (length, mass, temp) and fetch real-time exchange rates for global currencies.

ConvertersLaunch
UTF-8
⇄
B64 / URL
⚡ 54K uses

Hex to RGB / RGB to Hex

Convert colors between Hexadecimal codes and RGB/RGBA channels, with a live background visual preview.

ConvertersLaunch
⚡ 56K uses

JSON to CSV / CSV to JSON

Convert flat JSON arrays to CSV lists and CSV datasets back to formatted JSON arrays.

ConvertersLaunch
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⚡ 69K uses

HTML to Markdown Converter

Translate markup tags and nested HTML blocks back into standard Markdown files.

ConvertersLaunch
⚡ 56K uses

Bcrypt Password Verifier

Verify password strings against standard bcrypt hashes in an interactive sandbox.

DeveloperLaunch
⚡ 70K uses

CSS Border Radius Generator

Visually design and preview custom CSS border-radius rules and export them as copyable styles.

MediaLaunch
SHA-256
550e8400
f81d-4030
9a21-4562
e3b8-6872
SHA-256
550e8400
f81d-4030
⚡ 68K uses

Cryptographic Hash Generator

Generate SHA-1, SHA-256, and SHA-512 hashes instantly from input text strings using browser Web Crypto APIs.

DeveloperLaunch
⚡ 63K uses

Word & Character Counter

Analyze paragraphs to count characters, words, sentences, and compute average reading speeds.

DeveloperLaunch
⚡ 54K uses

Text Line Sorter & Cleaner

Clean lists: sort alphabetically or by size, deduplicate lines, and prune empty spaces.

DeveloperLaunch
⚡ 61K uses

TOML to YAML Converter

Translate config TOML values back into clean space-indented YAML configurations.

ConvertersLaunch
⚡ 52K uses

JSON to TOML Converter

Convert JSON configuration objects to structured, clean TOML documents instantly.

ConvertersLaunch
⚡ 58K uses

SQL Formatter & Beautifier

Clean up messy SQL queries. Formats keywords, indents logical conditions, and structures commands automatically.

DeveloperLaunch
⚡ 52K uses

User Agent Parser

Analyze user agent strings to extract OS, browser type, and layout rendering engines.

DeveloperLaunch
⚡ 49K uses

JSON to XML Converter

Map nested JSON keys and array grids to structured, readable XML strings.

ConvertersLaunch
⚡ 48K uses

DNS Record Lookup

Query and view standard DNS records (A, AAAA, MX, TXT) for any host or domain address.

DeveloperLaunch
⚡ 49K uses

TOML to JSON Converter

Translate TOML configuration values back into standard formatted JSON hierarchies.

ConvertersLaunch
UTF-8
⇄
B64 / URL
⚡ 62K uses

URL Encoder & Decoder

Convert strings into safe percent-encoded URL formats, or decode query parameters back to original values.

ConvertersLaunch
⚡ 58K uses

URL Slug Generator

Transform alphanumeric sentences into clean, lowercase, URL-friendly slugs.

DeveloperLaunch
⚡ 47K uses

XML to JSON Converter

Convert XML data documents back into clean, parsed JSON hierarchies.

ConvertersLaunch
+÷×−
⚡ 55K uses

IP Subnet Calculator

Calculate network addresses, subnet masks, broadcast addresses, and usable host ranges for any CIDR block.

DeveloperLaunch
UTF-8
⇄
B64 / URL
⚡ 49K uses

Text Case Converter

Change text cases instantly to UPPERCASE, lowercase, Title Case, camelCase, snake_case, or kebab-case.

DeveloperLaunch
⚡ 44K uses

Base64 Size & Overhead Analyzer

Compute original raw sizes and measure overhead increase percentages of base64 codes.

DeveloperLaunch
⚡ 41K uses

Caesar Cipher Encoder & Decoder

Encode or decode messages using a shift-based Caesar cipher algorithm.

ConvertersLaunch
# Header
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⚡ 40K uses

Lorem Ipsum Text Generator

Create batches of random dummy paragraphs, sentences, or word strings from a standard Latin corpus.

MediaLaunch
+÷×−
⚡ 41K uses

Number to Words Translator

Translate numeric integers into their formal English words representations.

ConvertersLaunch
⚡ 42K uses

XML Formatter & Beautifier

Format, structure, and indent raw XML strings with proper tag indents and clean spacing.

DeveloperLaunch
⚡ 41K uses

String Utility & Text Stripper

Prune whitespaces, replace substring matches, and strip duplicate newlines globally.

DeveloperLaunch
# Header
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*italic*
> quote
⚡ 38K uses

Lorem Code Snippet Generator

Generate dummy code structures in JS, Python, HTML, or SQL for developer visual testing.

MediaLaunch
⚡ 39K uses

IP Ping Latency Test

Simulate and measure network connectivity and ICMP response latency to any destination host.

DeveloperLaunch
⚡ 38K uses

Morse Code Translator

Translate Latin characters to Morse code sequences (dots/dashes) and translate Morse back to text.

ConvertersLaunch
# Header
**bold**
*italic*
> quote
⚡ 33K uses

Lorem HTML List Generator

Assemble mockup ordered or unordered HTML list templates with random items.

MediaLaunch
UTF-8
⇄
B64 / URL
⚡ 44K uses

HTML Entity Encoder & Decoder

Safely escape special characters like <, >, & into XML/HTML entities, or translate entity codes back to characters.

DeveloperLaunch
UTF-8
⇄
B64 / URL
⚡ 36K uses

String Hex Encoder & Decoder

Translate string characters into space-separated hexadecimal bytes and back.

ConvertersLaunch
⚡ 34K uses

Fibonacci Sequence Generator

Generate and display Fibonacci sequences up to 50 terms instantly.

DeveloperLaunch
⚡ 31K uses

Prime Number Tester

Verify if a number is prime and compute its prime factorization list instantly.

ConvertersLaunch
UTF-8
⇄
B64 / URL
⚡ 28K uses

Base32 Encoder & Decoder

Convert alphanumeric texts to Base32 representation formats, and decode them back safely.

ConvertersLaunch