Fixed

01

PDF Utilities

PDF Merger01 PDF Compressor02 PDF Splitter03 JPG/PNG to PDF04 PDF to JPG/PNG05 Lock PDF with Password06 Extract PDF Pages07 Rotate PDF Pages08 PDF Watermark09 PDF Metadata Viewer10 PDF to Word Converter11 PDF Form Filler12 PDF Redaction Tool13

02

JSON & Code Tools

JSON Viewer & Formatter14 JSON Validator & Linter15 JSON Diff Checker16 JavaScript Minifier17 JavaScript Formatter18 Live HTML Preview19 Handlebars (HBS) Viewer20 JSON Compressor21 JSON Content Analyzer22 CSS Compressor23 HTML Compressor24 YAML Formatter & Viewer25 SQL Formatter & Beautifier26 cURL to Code Converter27 HTML Formatter & Beautifier28 XML Formatter & Beautifier29 GraphQL Schema Viewer30 JSON Schema Generator31 OpenAPI / Swagger Viewer32 CSS to Tailwind Converter33 JSONPath Tester34 JSON String Escape & Unescape35

03

Visual & Design

App Icon Generator36 PNG to ICO Converter37 SVG to JSX Converter38 SVG Optimizer39 SVG to Data URI40 CSS Gradient Maker41 Box Shadow Maker42 Color Palette Generator43 CSS Grid Generator44 PX to REM Converter45 Color Contrast Checker46 CSS Flexbox Generator47 Color Picker & Converter48 Image Compressor49 Aspect Ratio Calculator50 CSS Specificity Calculator51 CSS Animation Generator52 CSS Clip-Path Generator53 CSS Text Shadow Maker54 Border Radius Generator55 Typography Scale Calculator56 Random Color Generator57 Color Palette from Image58 Placeholder Image Generator59 Color Blindness Simulator60 Code to Image61

04

Generators

Secure Password Generator62 UUID/GUID Generator63 QR Code Creator64 QR & Barcode Reader65 Barcode Generator66 Lorem Ipsum Generator67 Test Data Generator68 Mock API Data Tool69 .gitignore Template Maker70 Random String Generator71 Docker Compose Builder72 GitHub README Generator73 SSH Key Pair Generator74 TOTP / OTP Code Generator75 Nano ID Generator76 .env Template Generator77 Git Commit Generator78

05

AI & LLM Tools

AI Prompt Optimizer79 LLM Token Counter80 JSON to JSONL Converter81 YAML to Pydantic Model82 Python Code Formatter83 NLP Stopwords Remover84 AI Voice Script Helper85

06

SEO & Marketing

Meta Tag Generator86 JSON-LD Schema Builder87 Robots.txt Maker88 XML Sitemap Generator89 Keyword Density Checker90 Advanced URL Analyzer91 Open Graph Tag Builder92

07

Transformation & Encoding

Base64 Encoder & Decoder93 JWT Debugger & Decoder94 CSV to JSON Converter95 URL Matcher & Encoder96 Unix Timestamp Converter97 JWT Token Generator98 Number Base Converter99 YAML to JSON Converter100 String Escape Tool101 JSON to CSV Converter102 JSON to TOON Converter103 JSON to YAML Converter104 Markdown to HTML Viewer105 XML to JSON Converter106 Base64 Text Converter107 HTML Entity Encoder108 Date & Time Toolkit109 JSON to XML Converter110 HTML to Markdown Tool111 INI/JSON/YAML Converter112 Universal Unit Converter113 Data Transfer Converter114 Morse Code Translator115 ASCII & Unicode Table116 Image to Base64 Tool117 Image to Text (OCR)118 TOML ↔ JSON Converter119 Base32 Encoder & Decoder120 Hex Encoder & Decoder121 JSON to Python Dataclass122 JSON to C# Class123 JSON to Java POJO124 JSON to Zod Schema125 CSV to SQL Converter126 Markdown Table Generator127 JSON5 / HJSON Parser128 Binary ↔ Text Converter129 Query String Builder & Parser130

08

Text Utilities

Word & Character Counter131 Text Case Converter132 URL Slug Generator133 Text Diff Checker134 ENV Diff & Merge135 Reverse Text Tool136 Backslash Remover137 L33t Speak Translator138 Extra Space Remover139 Emoji Library & Picker140 ASCII Text Art Maker141 Character Frequency Analyzer142 Number Formatter143 Duplicate Line Remover144 Sort Lines Tool145 Find & Replace Tool146 Readability Score Checker147 Text Repeater148 Markdown Editor149 Line Ending Converter150

09

Security & Hashing

SHA-256 Hash Generator151 SHA-1 Hash Generator152 MD5 Hash Generator153 Bcrypt Password Hasher154 AES Encryption Tool155 SHA-512 Hash Generator156 RSA Key Encryptor157 HMAC Signature Maker158 CRC32 Checksum Tool159 DES/3DES Cipher Tool160 XOR Encryption Utility161 Website Security Scanner162 Password Strength Checker163 PBKDF2 / Argon2 Hasher164 SSL Certificate Decoder165 TOTP Authenticator Tester166 Password Breach Checker167 CSP Header Builder168 File Checksum Calculator169

10

Validators

Regex Tester & Debugger170 Email Address Validator171 URL Structure Validator172 IP Address Validator173 Cron Expression Helper174 Kubernetes Manifest Linter175 Color Code Validator176 SemVer Comparison Tool177 HTTP Status Codes Reference178 JSON Schema Validator179 HTML Validator180 Phone Number Validator181 IBAN Validator182 Credit Card Validator183 ISBN-10 / ISBN-13 Validator184

11

Measurement & Math

Percent Calculator185 Age Calculator Online186 BMI Calculator Online187 EMI & Loan Calculator188 Scientific Calculator189 Compound Interest Calculator190 Time Zone Meeting Planner191 Roman Numeral Converter192 Date Difference Calculator193 Tip Calculator194 Calorie & BMR Calculator195 Time Zone Converter196

12

Lookup & System

Internet Speed Test197 What is My IP Address?198 Domain WHOIS Lookup199 Hardware Device Test200 Social Username Checker201 Client Info & User Agent202 Global Map Finder203 Bulk URL Opener Tool204 DNS Lookup Tool205 IP Subnet Calculator206 chmod Permission Calculator207 HTTP Header Inspector208 Port Checker209 ASN Lookup210 SSL Certificate Checker211 IP Geolocation Lookup212 HTTP Redirect Checker213

13

Spreadsheet & Office

CSV Viewer & Table214 CSV Duplicate Remover215 Excel to CSV Converter216 Excel to JSON Converter217 PPTX Text Extractor218 Word / DOCX Viewer219 JSON to Excel Converter220 CSV File Merger221 Excel Formula Reference222 Text to Word Document223 Word to Text Extractor224 Word Text Merger225

14

Mobile & Platforms

JSON to TypeScript226 JSON to Go Struct227 CSS to React Native228 RN Shadow Generator229 RN Flexbox Playground230 JSON to Kotlin Data Class231 JSON to Swift Codable232 Kotlin Code Formatter233 Swift Code Formatter234

15

Image Tools

Image Format Converter235 EXIF Metadata Viewer & Stripper236 Image Resizer237 GIF Frame Extractor238 Image Crop Tool239 Image Watermarker240

16

API Testing

HTTP Request Tester241 WebSocket Tester242 GraphQL Playground243 Slack Webhook Tester244 Webhook Tester245 SMTP Email Tester246

17

Productivity

Pomodoro Focus Timer247 Stopwatch & Lap Counter248

File Checksum Calculator

Calculate and compare SHA-256 or SHA-512 hashes of local files.

File checksum

Calculate and compare file hashes locally with Web Crypto. Your file is not uploaded.

Drop a file to calculate its checksum

Click or drag & drop any file, up to 100 MB. Processing stays in your browser.

Any file

100% Private · Local

AlgorithmExpected checksum (optional)