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PDF Utilities

PDF MergerHOTNº001 PDF CompressorHOTNº002 PDF SplitterNº003 JPG/PNG to PDFNº004 PDF to JPG/PNGNº005 Lock PDF with PasswordNº006 Extract PDF PagesNº007 Rotate PDF PagesNº008 PDF WatermarkNº009 PDF Metadata ViewerNº010 PDF to Word ConverterNº011 PDF Form FillerNº012 PDF Redaction ToolNº013

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JSON & Code Tools

JSON Viewer & FormatterHOTNº014 JSON Validator & LinterHOTNº015 JSON Diff CheckerNº016 JavaScript MinifierNº017 JavaScript FormatterNº018 Live HTML PreviewNº019 Handlebars (HBS) ViewerNº020 JSON CompressorNº021 JSON Content AnalyzerNº022 CSS CompressorNº023 HTML CompressorNº024 YAML Formatter & ViewerNº025 SQL Formatter & BeautifierNº026 cURL to Code ConverterNº027 HTML Formatter & BeautifierNº028 XML Formatter & BeautifierNº029 GraphQL Schema ViewerNº030 JSON Schema GeneratorNº031 OpenAPI / Swagger ViewerNº032 CSS to Tailwind ConverterNº033 JSONPath TesterNº034

03

Visual & Design

App Icon GeneratorNº035 PNG to ICO ConverterNº036 SVG to JSX ConverterNº037 SVG OptimizerNº038 SVG to Data URINº039 CSS Gradient MakerNº040 Box Shadow MakerNº041 Color Palette GeneratorNº042 CSS Grid GeneratorNº043 PX to REM ConverterNº044 Color Contrast CheckerNº045 CSS Flexbox GeneratorNº046 Color Picker & ConverterHOTNº047 Image CompressorHOTNº048 Aspect Ratio CalculatorNº049 CSS Specificity CalculatorNº050 CSS Animation GeneratorNº051 CSS Clip-Path GeneratorNº052 CSS Text Shadow MakerNº053 Border Radius GeneratorNº054 Typography Scale CalculatorNº055 Random Color GeneratorNº056 Color Palette from ImageNº057 Placeholder Image GeneratorNº058 Color Blindness SimulatorNº059 Code to ImageNº060

04

Generators

Secure Password GeneratorHOTNº061 UUID/GUID GeneratorHOTNº062 QR Code CreatorHOTNº063 QR & Barcode ReaderNº064 Barcode GeneratorNº065 Lorem Ipsum GeneratorNº066 Test Data GeneratorNº067 Mock API Data ToolNº068 .gitignore Template MakerNº069 Random String GeneratorNº070 Docker Compose BuilderNº071 GitHub README GeneratorNº072 SSH Key Pair GeneratorNº073 TOTP / OTP Code GeneratorNº074 Nano ID GeneratorNº075 .env Template GeneratorNº076 Git Commit GeneratorNº077

05

AI & LLM Tools

AI Prompt OptimizerNº078 LLM Token CounterNº079 JSON to JSONL ConverterNº080 YAML to Pydantic ModelNº081 Python Code FormatterNº082 NLP Stopwords RemoverNº083 AI Voice Script HelperNº084

06

SEO & Marketing

Meta Tag GeneratorHOTNº085 JSON-LD Schema BuilderNº086 Robots.txt MakerNº087 XML Sitemap GeneratorNº088 Keyword Density CheckerNº089 Advanced URL AnalyzerNº090 Open Graph Tag BuilderNº091

07

Transformation & Encoding

Base64 Encoder & DecoderHOTNº092 JWT Debugger & DecoderHOTNº093 CSV to JSON ConverterHOTNº094 URL Matcher & EncoderHOTNº095 Unix Timestamp ConverterHOTNº096 JWT Token GeneratorNº097 Number Base ConverterNº098 YAML to JSON ConverterNº099 String Escape ToolNº100 JSON to CSV ConverterNº101 JSON to TOON ConverterNº102 JSON to YAML ConverterNº103 Markdown to HTML ViewerNº104 XML to JSON ConverterNº105 Base64 Text ConverterNº106 HTML Entity EncoderNº107 Date & Time ToolkitNº108 JSON to XML ConverterNº109 HTML to Markdown ToolNº110 INI/JSON/YAML ConverterNº111 Universal Unit ConverterNº112 Data Transfer ConverterNº113 Morse Code TranslatorNº114 ASCII & Unicode TableNº115 Image to Base64 ToolNº116 Image to Text (OCR)Nº117 TOML ↔ JSON ConverterNº118 Base32 Encoder & DecoderNº119 Hex Encoder & DecoderNº120 JSON to Python DataclassNº121 JSON to C# ClassNº122 JSON to Java POJONº123 JSON to Zod SchemaNº124 CSV to SQL ConverterNº125 Markdown Table GeneratorNº126 JSON5 / HJSON ParserNº127 Binary ↔ Text ConverterNº128

08

Text Utilities

Word & Character CounterHOTNº129 Text Case ConverterHOTNº130 URL Slug GeneratorNº131 Text Diff CheckerNº132 ENV Diff & MergeNº133 Reverse Text ToolNº134 Backslash RemoverNº135 L33t Speak TranslatorNº136 Extra Space RemoverNº137 Emoji Library & PickerNº138 ASCII Text Art MakerNº139 Character Frequency AnalyzerNº140 Number FormatterNº141 Duplicate Line RemoverNº142 Sort Lines ToolNº143 Find & Replace ToolNº144 Readability Score CheckerNº145 Text RepeaterNº146 Markdown EditorNº147

09

Security & Hashing

SHA-256 Hash GeneratorHOTNº148 SHA-1 Hash GeneratorNº149 MD5 Hash GeneratorNº150 Bcrypt Password HasherNº151 AES Encryption ToolNº152 SHA-512 Hash GeneratorNº153 RSA Key EncryptorNº154 HMAC Signature MakerNº155 CRC32 Checksum ToolNº156 DES/3DES Cipher ToolNº157 XOR Encryption UtilityNº158 Website Security ScannerNº159 Password Strength CheckerNº160 PBKDF2 / Argon2 HasherNº161 SSL Certificate DecoderNº162 TOTP Authenticator TesterNº163 Password Breach CheckerHOTNº164 CSP Header BuilderNº165

10

Validators

Regex Tester & DebuggerHOTNº166 Email Address ValidatorNº167 URL Structure ValidatorNº168 IP Address ValidatorNº169 Cron Expression HelperNº170 Kubernetes Manifest LinterNº171 Color Code ValidatorNº172 SemVer Comparison ToolNº173 HTTP Status Codes ReferenceNº174 JSON Schema ValidatorNº175 HTML ValidatorNº176 Phone Number ValidatorNº177 IBAN ValidatorNº178 Credit Card ValidatorNº179 ISBN-10 / ISBN-13 ValidatorNº180

11

Measurement & Math

Percent CalculatorHOTNº181 Age Calculator OnlineNº182 BMI Calculator OnlineNº183 EMI & Loan CalculatorNº184 Scientific CalculatorNº185 Currency ConverterHOTNº186 Compound Interest CalculatorNº187 Time Zone Meeting PlannerNº188 Roman Numeral ConverterNº189 Date Difference CalculatorHOTNº190 Tip CalculatorNº191 Calorie & BMR CalculatorNº192

12

Lookup & System

Internet Speed TestHOTNº193 What is My IP Address?HOTNº194 Domain WHOIS LookupNº195 Hardware Device TestNº196 Social Username CheckerNº197 Client Info & User AgentNº198 Global Map FinderNº199 Bulk URL Opener ToolNº200 DNS Lookup ToolNº201 IP Subnet CalculatorNº202 chmod Permission CalculatorNº203 HTTP Header InspectorNº204 Port CheckerNº205 ASN LookupNº206 SSL Certificate CheckerNº207 IP Geolocation LookupHOTNº208 HTTP Redirect CheckerNº209

13

Spreadsheet & Office

CSV Viewer & TableNº210 CSV Duplicate RemoverNº211 Excel to CSV ConverterNº212 Excel to JSON ConverterNº213 PPTX Text ExtractorNº214 Word / DOCX ViewerNº215 JSON to Excel ConverterNº216 CSV File MergerNº217 Excel Formula ReferenceNº218

14

Mobile & Platforms

JSON to TypeScriptNº219 JSON to Go StructNº220 CSS to React NativeNº221 RN Shadow GeneratorNº222 RN Flexbox PlaygroundNº223 JSON to Kotlin Data ClassNº224 JSON to Swift CodableNº225 Kotlin Code FormatterNº226 Swift Code FormatterNº227

15

Image Tools

Image Format ConverterNº228 EXIF Metadata Viewer & StripperNº229 Image ResizerNº230 GIF Frame ExtractorNº231 Image Crop ToolNº232 Image WatermarkerNº233

16

API Testing

HTTP Request TesterNº234 WebSocket TesterNº235 GraphQL PlaygroundNº236 Slack Webhook TesterNº237 Webhook TesterNº238 SMTP Email TesterNº239

17

Productivity

Pomodoro Focus TimerNº240 Stopwatch & Lap CounterNº241

CSS Grid Generator

Sketch interactive CSS grid layouts and download the generated CSS.

Grid preview

Live grid with 3×3 cells and 16px gap. Adjust settings on the right.

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display: grid;
grid-template-columns: repeat(3, 1fr);
grid-template-rows: repeat(3, 1fr);
gap: 16px;

Settings

Columns, rows & gap

Columns3

Rows3

Gap16px

Generates 1fr tracks for modern, fluid and responsive layouts.