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Generator API Key Generator Generate secure API keys with configurable length, prefix, quantity, and URL-safe, hexadecimal, Base32, or alphanumeric formats. Text Alternating Case Converter Convert ordinary text into alternating uppercase and lowercase letters while preserving spaces, punctuation, numbers, and line breaks. Generator BCrypt Hash Generator Use this free BCrypt Hash Generator to create a salted password hash with a configurable cost and copy it for secure password-storage testing. Validator BCrypt Verify Verify a plain-text password against a BCrypt hash safely, understand match results, and troubleshoot invalid hash formats without attempting to decode the hash. Encode Decode Base64 Decoder Decode Base64 into readable Unicode text for debugging, data recovery, API checks, configuration review, and development work Encode Decode Base64 Encoder Encode Unicode text as Base64 for data transport, API payloads, configuration values, testing, and development tasks Generator CRC32 Generator Generate CRC32 checksums from exact text in hexadecimal and decimal formats for compatibility checks, fixtures, archives, and data-transfer testing. Developer CSS Beautifier Use CSS Beautifier to format compressed or inconsistent CSS online with readable indentation, line breaks, declarations, selectors, comments, and nested blocks. Developer CSS Minifier Minify CSS by removing unnecessary spaces and comments for smaller stylesheets, cleaner delivery, and deployment workflows Table CSV Formatter Normalize CSV rows, delimiters, quoting, whitespace, and column structure into consistent downloadable output. Table CSV Merger Combine compatible CSV datasets into one file while checking headers, delimiters, and record structure. Table CSV Splitter Split a large CSV dataset into smaller files by row count while preserving the header and record structure. Validator CSV Validator Validate CSV structure, detect inconsistent rows, and identify quoting or delimiter problems before import. Table CSV Viewer Open CSV data in a clear table, inspect rows and columns, and review structured records before using them elsewhere. Developer CSV to JSON: Best Free Online Converter CSV to JSON converts CSV rows into structured JSON for APIs, imports, scripts, testing, and migration. Review headers, values, quoting, and the final result before copying the output. Text Case Converter Convert text to camelCase, PascalCase, snake_case and more. Encode DecodeNEW Certificate Decoder Decode X.509 PEM certificates and inspect subject, issuer, validity, fingerprints, SAN entries, signature algorithm, and key usage. TextNEW Character Counter Measure characters with and without spaces, plus words and lines, for social posts, forms, metadata, and editing Encode Decode Checksum Calculator Calculate CRC32, MD5, SHA-1, SHA-256, SHA-384, or SHA-512 checksums from exact text and compare deterministic outputs across systems. Text Collapse Spaces Collapse repeated horizontal spaces into one space while preserving line breaks, paragraph structure, and the order of your text. Text Comma List to Lines Convert comma-separated values into one trimmed item per line, omit empty entries, and prepare a clean vertical list for spreadsheets or imports. Text Duplicate Paragraph Remover Remove repeated paragraphs while preserving order. Text Email Extractor Find email addresses in authorized pasted text, remove repeated matches, and return a clean copyable list in first-seen order. Text Emoji Remover Remove emoji symbols and related joiner characters from text while preserving surrounding words, punctuation, spacing, and line structure. Text Find and Replace Replace every exact occurrence of a chosen text value while keeping the source available for comparison. Developer GraphQL Formatter GraphQL Formatter turns compressed GraphQL queries, mutations, fragments, and variables into readable structured output for faster review, debugging, and team collaboration. Developer GraphQL Minifier GraphQL Minifier removes unnecessary whitespace and comments from GraphQL queries while preserving operations, fragments, variables, directives, and string values. Generator HMAC Generator Generate keyed HMAC digests from a message and secret using SHA-256, SHA-384, or SHA-512, with clear hexadecimal output for testing integrations. Developer HTML Beautifier Format compact or inconsistent HTML with readable indentation, line breaks, nested elements, comments, and document structure. Encode Decode HTML Decoder Decode HTML entities into readable characters for content cleanup, debugging, migration, and template review Encode Decode HTML Encoder Encode reserved HTML characters into entities for safe display in examples, documentation, templates, and web content Developer HTML Minifier Minify HTML by removing unnecessary whitespace and comments for smaller markup, faster transfer, and deployment preparation Developer HTML Tag Remover Remove HTML tags from markup while keeping readable text for cleanup, migration, extraction, and content preparation Network HTTP Status Code Lookup Look up an HTTP response code and understand its official class, common meaning, and practical debugging context. GeneratorNEW Hash Generator Use this free Hash Generator to create MD5, SHA-1, SHA-256, and SHA-512 hashes from text, verify exact input, and copy results online. Text Hashtag Extractor Extract unique hashtags from captions, notes, and campaign text in their original first-seen order. CompareNEW JSON Compare Compare two JSON documents online, validate their syntax, normalize formatting, and highlight added, removed, changed, and unchanged lines. Compare JSON Diff Viewer Compare two JSON documents online, validate their syntax, normalize formatting, and inspect added, removed, or changed values in a clear diff. Developer JSON Formatter Format and indent JSON so objects, arrays, keys, and values are easier to inspect, debug, validate, and share Developer JSON Minifier Minify formatted JSON into a compact single-line representation for APIs, storage, testing, and data transfer. Validator JSON Schema Validator JSON Schema Validator checks JSON against a schema, reports exact validation paths, and helps you review required fields, types, formats, arrays, and nested objects online. DeveloperNEW JSON Sorter Use this free JSON Sorter to alphabetize object keys recursively while preserving values, nested structures, and array order online. Validator JSON Validator Validate JSON syntax and identify parsing errors before using data in an API, application, import, or configuration. Converter JSON to CSV Convert a JSON array of objects into CSV rows for spreadsheets, reports, imports, and structured-data review. Converter JSON to YAML Convert JSON data to readable YAML. Encode Decode JWT Decoder Decode JWT header and payload data for inspection without verifying the token signature or authenticity. Generator JWT Generator Create signed HS256 JSON Web Tokens. Developer JavaScript Beautifier Use JavaScript Beautifier to format compact JavaScript online with readable indentation, braces, statements, operators, comments, strings, and template literals. Developer JavaScript Minifier Use JavaScript Minifier to remove comments and unnecessary whitespace from JavaScript online while preserving strings, template literals, identifiers, and operators. Text Line Counter Count total, non-empty, and blank lines in text, code, lists, logs, and documents with a clear browser workflow Text Lines to Comma List Join non-empty trimmed lines into one comma-separated list while preserving the original item order. Text Lowercase Converter Convert cased letters to lowercase while preserving punctuation, spaces, and line breaks. Generator MD5 Generator Use this free MD5 Generator to generate a MD5 hash from exact text, verify whitespace and encoding, and copy a clean hexadecimal digest online. Text Markdown Preview Render common Markdown syntax as safe HTML so structure and formatting can be reviewed before publishing. Converter Markdown to HTML Convert common Markdown syntax into HTML for previews, documentation, articles, notes, and lightweight publishing workflows. Text Mention Extractor Extract unique @mentions from authorized text and preserve the order in which accounts first appear. Text Number Extractor Extract signed integers and decimal values from mixed text while preserving their original order. Validator OpenAPI Validator OpenAPI Validator reviews OpenAPI documents for structural and reference problems, helping teams detect invalid paths, operations, schemas, parameters, and responses online. Encode DecodeNEW PEM Formatter Format PEM certificates and keys, validate matching boundary labels, and wrap Base64 content into standard 64-character lines. Text Paragraph Counter Count non-empty text paragraphs separated by one or more blank lines. GeneratorNEW Password Generator Advanced Generate strong random passwords with custom length, character sets, exclusions, quantity controls, and secure browser-friendly output. Validator Password Strength Checker Check password strength using length, character variety, repetition, sequences, and common-pattern signals while keeping the result easy to understand. Text Phone Number Extractor Extract likely phone numbers from mixed text while preserving their original appearance and order. Text Prefix Lines Add the same prefix to every following line while preserving line order and line breaks. Network Query String Parser Parse a complete URL or raw query string into structured, readable JSON without changing the original input. Text Quote Lines Wrap every source line in quotation marks while preserving line order and line breaks. GeneratorNEW RSA Key Generator Generate RSA public and private key pairs in PEM format with selectable key sizes and optional passphrase protection. Generator Random Password Generator Generate strong random passwords with a chosen length for accounts, test data, temporary credentials, and security-focused workflows. Calculator Reading Time Calculator Estimate how long a text takes to read from its word count using a clear words-per-minute model. Developer Regex Tester Test regular expressions against sample text. Text Remove All Spaces Remove every whitespace character, including spaces, tabs, and line breaks, to create one uninterrupted string. Text Remove Duplicate Lines Keep the first occurrence of each exact line, remove later duplicates, and preserve the original line order. Text Remove Duplicate Words Remove repeated words case-insensitively while keeping each first spelling and the original first-seen order. TextNEW Remove Empty Lines Delete blank and whitespace-only lines while preserving every populated line in its original order. Text Remove Line Numbers Strip common leading line-number formats while leaving the remaining line content intact. Use it on copied transcripts, numbered exports, documentation and code samples. Text Remove Numbers Remove numeric digits from text while keeping letters, punctuation, spacing, and line order available for review. Text Remove Punctuation Remove punctuation characters from text while preserving words, numbers, spaces, and line order for review. Text Remove Tabs Remove tab characters from text while keeping the remaining content and line structure visible for comparison. Text Remove Word remove word with a focused browser utility that targets the entered term while keeping the original source visible for careful comparison. Text Reverse Lines reverse lines with a focused browser tool that changes only the order of complete lines while keeping every word, number, symbol, and punctuation mark inside each line unchanged. Text Reverse Text reverse text with a browser utility that returns characters in the opposite order while keeping the original source visible for direct comparison. Text Reverse Words reverse words with a focused tool that changes the order of word tokens while keeping the characters inside each individual word readable. Generator SHA1 Generator Use this free SHA1 Generator to generate a SHA-1 hash from exact text, verify whitespace and encoding, and copy a clean hexadecimal digest online. Generator SHA256 Generator Use this free SHA256 Generator to generate a SHA-256 hash from exact text, verify whitespace and encoding, and copy a clean hexadecimal digest online. Generator SHA512 Generator Use this free SHA512 Generator to generate a SHA-512 hash from exact text, verify whitespace and encoding, and copy a clean hexadecimal digest online. Developer SQL Beautifier Format SQL queries with readable clauses, indentation, line breaks, joins, conditions, grouping, and ordering. Developer SQL Formatter Format SQL statements with clearer indentation and line breaks for review, debugging, documentation, and database development. Developer SQL Minifier Compress SQL queries by removing comments and unnecessary whitespace while keeping statements easy to copy and deploy. Generator SSH Key Generator Generate an RSA SSH public and private key pair with selectable strength, OpenSSH public-key output, and a SHA-256 fingerprint. Generator Secure Random Generator Generate cryptographically secure random bytes, strings, URL-safe values, and integers for development and security workflows. Text Sentence Case Converter This sentence case converter changes irregular capitalization into a sentence-style pattern while keeping the original text available for comparison. Text Sentence Counter Use this sentence counter to estimate the number of sentence units in articles, essays, notes, product descriptions, and other text. Text Shuffle Lines Shuffle lines into a random order while keeping every line available for review in a separate result. Text Slug Generator: Best Free Online Tool Slug Generator creates a clean, lowercase, hyphenated URL slug from any title or phrase. Use this free online tool to review an SEO-friendly result before publishing or changing a permalink. Text Sort Lines Sort lines in ascending alphabetical or natural order while preserving the original source for comparison. Text Sort Lines Descending Sort lines from Z to A or from higher to lower natural values with a separate result for verification. Text Suffix Lines Add the same suffix to every line while keeping the original list visible for careful comparison. Text Tabs to Spaces Replace tab characters with a consistent number of spaces for code, plain text, logs, tables, and formatting cleanup Compare Text Diff Checker Compare two text versions line by line and identify additions, removals, and unchanged content. Text Text Repeater Repeat text a chosen number of times with predictable separators for testing, templates, sample data, and content preparation Text Text Statistics Measure words, characters, sentences, paragraphs, lines, and estimated reading time in one document overview. Converter Timestamp Converter Convert Unix timestamps and date-time values. Text Title Case Converter Convert headings and titles into consistent title case for articles, pages, product names, documents, and publishing workflows Generator Token Generator Generate secure session, CSRF, URL-safe, hexadecimal, and Base64 tokens from cryptographically secure random bytes. Text Trim Whitespace Remove unwanted spaces around every line without changing the meaningful text inside each line. Encode Decode URL Decoder Decode percent-encoded URLs and query values into readable text for debugging, analysis, testing, and content review Encode Decode URL Encoder Encode text and reserved characters for query strings, links, redirects, API requests, and safe URL handling Text URL Extractor Extract web addresses from text, HTML, logs, exports, and documents for audits, migration, outreach, and review NetworkNEW URL Parser Use this free URL Parser to split any absolute link into scheme, host, port, path, query parameters, and fragment online. Encode DecodeNEW UUID Decoder Decode a UUID into version, variant, hexadecimal fields, node data, clock sequence, and timestamp information when the version supports it. Generator UUID Generator Generate random UUID version 4 identifiers for development, databases, fixtures, APIs, testing, and content-management workflows. ValidatorNEW UUID Validator Validate UUID syntax online, identify versions 1 through 8, confirm the RFC variant, and understand why an identifier is invalid. Text Unique Word Finder Find distinct words, repeated terms, and vocabulary patterns in text for editing, research, SEO, and content analysis Text Uppercase Converter Convert letters to uppercase instantly while preserving punctuation, numbers, spacing, and line order. TextNEW Word Counter Count words, characters, sentences, and paragraphs in text for writing, editing, SEO, study, and content planning Text Word Frequency Counter Count how often every word appears, rank repeated terms, and inspect vocabulary balance in any pasted text. Text Words to Lines Place words or separated values on individual lines for lists, imports, cleanup, deduplication, and data preparation Compare XML Compare Compare two XML documents online, validate their structure, normalize indentation, and review changed elements, attributes, text nodes, and line positions. Developer XML Formatter: 7 Amazing Proven Tips Format and indent XML for easier inspection, debugging, configuration review, data exchange, and development workflows Validator XML Validator: 7 Amazing Proven Tips Validate XML structure and syntax to find malformed tags, broken nesting, and parsing problems before import or deployment Converter XML to CSV Convert repeated XML records into CSV rows for spreadsheets, imports, reporting, and data review. Converter XML to JSON Convert XML elements, attributes, text values, and repeated nodes into readable structured JSON online. Compare YAML Compare YAML Compare helps you compare two YAML documents, detect added, removed, changed, and type-mismatched values, and review differences with a clear online workflow. Developer YAML Formatter Format and indent YAML data. Validator YAML Validator Validate YAML syntax and structure. Converter YAML to JSON Convert YAML data to formatted JSON.

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Questions people ask before using the tools

Clear answers about access, limits, privacy, and choosing the right workflow.

Do I need to install anything to use Trexmi tools?

No installation is required. Open a tool in your browser, provide the requested input, and process the result directly on the page. This makes the tools practical on shared computers and mobile devices as well as on a regular desktop.

Can I use these tools without creating an account?

Most tools can be opened and tested without an account. Registration is useful when you need higher free limits, saved preferences, favorites, or account-based features. Trexmi PRO is intended for larger and more frequent workloads.

How do I find the right tool quickly?

Use the live filter above the tool grid. It searches tool names, descriptions, keywords, and categories immediately. You can then sort the visible results by recommendation, newest, alphabetical order, featured status, or popularity.

Are the tools suitable for professional work?

The tools are designed around focused, repeatable tasks rather than large complicated workflows. They are useful for content preparation, development, data cleanup, office work, quality checks, and other everyday operations where speed and predictable output matter.

What happens when a task is larger than the free limit?

Trexmi shows the relevant limit only when it affects the task. You can split the input into smaller runs, create a free account for higher allowances where available, or use PRO for larger supported inputs and more frequent usage.

Will more trexmi tools be added?

Yes. Trexmi is structured as an expanding tool platform. New utilities can be added to existing categories, while new categories appear automatically in the directory when they contain public tools.