# ZweiDeveloper Tools

> Essential tools for developers: generators, validators, hash, encryption, and more.

- [Version in Português](https://tools.zweideveloper.com/pt-BR/llms.txt)

## Tools

- [CPF Generator](https://tools.zweideveloper.com/en/tools/cpf-generator): Generate valid CPFs for software development testing. Our tool creates mathematically correct CPF numbers following the official algorithm.
- [CNPJ Generator](https://tools.zweideveloper.com/en/tools/cnpj-generator): Brazilian National Registry of Legal Entities (CNPJ) Generator
- [CNPJ Headquarters and Branch Generator](https://tools.zweideveloper.com/en/tools/cnpj-headquarters-generator): Generate a valid headquarters and branch CNPJ number.
- [RG Generator](https://tools.zweideveloper.com/en/tools/rg-generator): General Registry (RG) Generator
- [CNH Generator](https://tools.zweideveloper.com/en/tools/cnh-generator): National Driver's License (CNH) Generator
- [Credit Card Generator](https://tools.zweideveloper.com/en/tools/credit-card-generator): Generate valid credit card numbers (MasterCard, Visa, etc.) for testing.
- [Lorem Ipsum Generator](https://tools.zweideveloper.com/en/tools/lorem-ipsum-generator): Lorem Ipsum text generator
- [NF-e Access Key Generator](https://tools.zweideveloper.com/en/tools/nfe-access-key-generator): Generate valid Electronic Fiscal Note (NF-e) access keys for testing.
- [Fiscal Access Key Generator (CT-e, MDF-e, NFC-e)](https://tools.zweideveloper.com/en/tools/fiscal-access-key-generator): Generate valid random access keys for CT-e, MDF-e, and NFC-e for testing.
- [UUID Generator](https://tools.zweideveloper.com/en/tools/uuid-generator): Generate universally unique identifiers (UUIDs) of different versions (v1, v3, v4, v5, v7).
- [ULID Generator](https://tools.zweideveloper.com/en/tools/ulid-generator): Generate Universally Unique Lexicographically Sortable Identifiers (ULIDs).
- [Random Number Generator](https://tools.zweideveloper.com/en/tools/random-number-generator): Generate random numbers with custom range and length.
- [IMEI Generator](https://tools.zweideveloper.com/en/tools/imei-generator): Generate valid IMEIs for software development testing. Our tool creates mathematically correct IMEI numbers using the Luhn algorithm following international standards.
- [CPF Validator](https://tools.zweideveloper.com/en/tools/cpf-validator): Brazilian Individual Taxpayer Registry (CPF) Validator
- [CNPJ Validator](https://tools.zweideveloper.com/en/tools/cnpj-validator): Brazilian National Registry of Legal Entities (CNPJ) Validator
- [RG Validator](https://tools.zweideveloper.com/en/tools/rg-validator): General Registry (RG) Validator
- [CNH Validator](https://tools.zweideveloper.com/en/tools/cnh-validator): National Driver's License (CNH) Validator
- [Credit Card Validator](https://tools.zweideveloper.com/en/validate/credit-card): Validate credit card numbers using the Luhn algorithm and identify the brand.
- [E.164 Validator](https://tools.zweideveloper.com/en/validate/e164): Validate international phone numbers against the E.164 standard (+[1-15 digits]).
- [NF-e Access Key Validator](https://tools.zweideveloper.com/en/validate/nfe-access-key): Validate Electronic Fiscal Note (NF-e) access keys.
- [Fiscal Access Key Validator](https://tools.zweideveloper.com/en/validate/fiscal-access-keys): Validate CT-e, MDF-e, and NFC-e access keys.
- [IMEI Validator](https://tools.zweideveloper.com/en/tools/imei-validator): Validate IMEIs using the Luhn algorithm. Check if an IMEI number is mathematically valid before using it in your testing and software development.
- [MD5 Generator](https://tools.zweideveloper.com/en/tools/md5-generator): Generate MD5 hash from text.
- [SHA1 Generator](https://tools.zweideveloper.com/en/tools/sha1-generator): Generate SHA1 hash from text.
- [SHA2-224 Generator](https://tools.zweideveloper.com/en/tools/sha2/sha224-generator): Generate SHA2-224 hash from text.
- [SHA2-256 Generator](https://tools.zweideveloper.com/en/tools/sha2/sha256-generator): Generate SHA2-256 hash from text.
- [SHA2-384 Generator](https://tools.zweideveloper.com/en/tools/sha2/sha384-generator): Generate SHA2-384 hash from text.
- [SHA2-512 Generator](https://tools.zweideveloper.com/en/tools/sha2/sha512-generator): Generate SHA2-512 hash from text.
- [SHA3-224 Generator](https://tools.zweideveloper.com/en/tools/sha3/sha224-generator): Generate SHA3-224 hash from text.
- [SHA3-256 Generator](https://tools.zweideveloper.com/en/tools/sha3/sha256-generator): Generate SHA3-256 hash from text.
- [SHA3-384 Generator](https://tools.zweideveloper.com/en/tools/sha3/sha384-generator): Generate SHA3-384 hash from text.
- [SHA3-512 Generator](https://tools.zweideveloper.com/en/tools/sha3/sha512-generator): Generate SHA3-512 hash from text.
- [Keccak-224 Generator](https://tools.zweideveloper.com/en/tools/keccak/keccak-224-generator): Generate Keccak-224 hash from text.
- [Keccak-256 Generator](https://tools.zweideveloper.com/en/tools/keccak/keccak-256-generator): Generate Keccak-256 hash (Ethereum Standard) from text.
- [Keccak-384 Generator](https://tools.zweideveloper.com/en/tools/keccak/keccak-384-generator): Generate Keccak-384 hash from text.
- [Keccak-512 Generator](https://tools.zweideveloper.com/en/tools/keccak/keccak-512-generator): Generate Keccak-512 hash from text.
- [AES Encrypt](https://tools.zweideveloper.com/en/tools/aes/encrypt): Encrypt text and data using the AES algorithm with various settings.
- [AES Decrypt](https://tools.zweideveloper.com/en/tools/aes/decrypt): Decrypt AES text and data by providing the correct passphrase and parameters.
- [DES Encrypt](https://tools.zweideveloper.com/en/tools/des/encrypt): Encrypt text using the DES algorithm. Configure advanced options like block cipher mode, padding, and key derivation (PBKDF2/EvpKDF).
- [DES Decrypt](https://tools.zweideveloper.com/en/tools/des/decrypt): Decrypt text using the DES algorithm. Configure advanced options like block cipher mode, padding, and key derivation (PBKDF2/EvpKDF).
- [Base64 Encode](https://tools.zweideveloper.com/en/tools/base64/encode): Encode text to Base64 format using different character encodings.
- [Base64 Decode](https://tools.zweideveloper.com/en/tools/base64/decode): Decode Base64 text to its original format using different character encodings.
- [Hex Encoder](https://tools.zweideveloper.com/en/tools/hex/encode): Convert text to Hexadecimal (Base16) format easily. Secure, fast, and works directly in your browser. Supports multiple input encodings.
- [Hex Decoder](https://tools.zweideveloper.com/en/tools/hex/decode): Convert Hexadecimal (Base16) strings back to text instantly. Secure, client-side decoding for developers and data analysts.
- [JWT Decoder](https://tools.zweideveloper.com/en/tools/jwt/decode): Decode JSON Web Tokens (JWT) instantly. View header, payload, and verify signatures using HS256, HS384, and HS512 algorithms. Secure and client-side.
- [Text Counter](https://tools.zweideveloper.com/en/tools/text-counter): Count characters, words, lines, paragraphs, and bytes instantly. Real-time analysis for writers, developers, and students.
- [Text to Uppercase](https://tools.zweideveloper.com/en/tools/text-to-uppercase): Convert all text to uppercase letters.
- [Text to Lowercase](https://tools.zweideveloper.com/en/tools/text-to-lowercase): Convert all text to lowercase letters.
- [Capitalize Words](https://tools.zweideveloper.com/en/tools/capitalize-words): Capitalize the first letter of each word.
- [Capitalize Sentences](https://tools.zweideveloper.com/en/tools/capitalize-sentences): Capitalize the first letter of each sentence.
- [Remove Accents](https://tools.zweideveloper.com/en/tools/remove-accents): Remove all accents from the text.
- [GitAutoFetch](https://tools.zweideveloper.com/en/extensions-plugins/git-auto-fetch2022): Automatic synchronization of Git repositories for Visual Studio 2022.
- [Intrinsic Value Calculator for Stocks](https://tools.zweideveloper.com/en/extensions-plugins/intrinsic-value-calculator-stocks): Calculate the Intrinsic Value (Graham) and Ceiling Price (Bazin) of stocks.
- [Search Brazilian CNPJ](https://tools.zweideveloper.com/en/tools/cnpj-search): Search for information about a Brazilian CNPJ (National Registry of Legal Entities).
- [Search Brazilian CEP](https://tools.zweideveloper.com/en/tools/cep-search): Search for information about a Brazilian CEP (Postal Address Code).
- [Intrinsic Value Calculator (Graham)](https://tools.zweideveloper.com/en/tools/graham-intrinsic-value-calculator): Calculate the intrinsic value of a stock using Benjamin Graham's formula.
- [Ceiling Price Calculator (Bazin)](https://tools.zweideveloper.com/en/tools/bazin-ceiling-price-calculator): Calculate the ceiling price of a stock using Décio Bazin's method.
- [Time Calculator](https://tools.zweideveloper.com/en/tools/time-calculator): Add or subtract hours, minutes, and seconds like a time bank.
- [Hourly to Monthly Salary Calculator](https://tools.zweideveloper.com/en/tools/hourly-to-monthly-salary): Convert your hourly rate to gross and net monthly salary easily.
- [Salary by Hours Worked Calculator](https://tools.zweideveloper.com/en/tools/salary-by-hours-worked): Calculate how much you should receive based on hours worked.
- [JSON Formatter](https://tools.zweideveloper.com/en/tools/json/format): Format and validate JSON with customizable indentation. Beautify or minify JSON instantly.
- [JSON to CSV](https://tools.zweideveloper.com/en/tools/json/json-to-csv): Convert JSON arrays to CSV format. Export JSON data as a spreadsheet.
- [CSV to JSON](https://tools.zweideveloper.com/en/tools/json/csv-to-json): Convert CSV data to JSON format. Import spreadsheets as JSON.
- [JSON to XML](https://tools.zweideveloper.com/en/tools/json/json-to-xml): Convert JSON to XML format. Transform JSON data into an XML structure.
- [XML to JSON](https://tools.zweideveloper.com/en/tools/json/xml-to-json): Convert XML to JSON format. Parse XML and transform to JSON.
- [JSON to YAML](https://tools.zweideveloper.com/en/tools/json/json-to-yaml): Convert JSON to YAML format. Ideal for configuration files.
- [YAML to JSON](https://tools.zweideveloper.com/en/tools/json/yaml-to-json): Convert YAML to JSON format. Parse YAML and transform to JSON.
- [Markdown Preview](https://tools.zweideveloper.com/en/tools/markdown/preview): Visualize Markdown documents in real-time with professional rendering.
- [Markdown to HTML](https://tools.zweideveloper.com/en/tools/markdown/markdown-to-html): Convert Markdown code to pure HTML quickly and safely.
- [HTML to Markdown](https://tools.zweideveloper.com/en/tools/markdown/html-to-markdown): Convert HTML code to clean and organized Markdown syntax.