Case Converter
Change text to uppercase, lowercase, title case, sentence case, or toggle case in your browser.
Open converterBROWSER-BASED UTILITIES
All Tools
Browse the tools available on RandomTools. Search by a tool name or its category.
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Showing 19 tools.
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Text & Writing
Word & Character Counter
Count words, characters, sentences, paragraphs, and lines as you type. Text stays in your browser.
Open counterMarkdown Editor & Previewer
Write Markdown and view a locally rendered, sanitized preview with tables, task lists, and code blocks.
Open editorDeveloper Tools
JSON Formatter & Validator
Format, minify, and validate JSON in your browser without sending input to an external service.
Open formatterBase64 Encoder & Decoder
Encode Unicode text to standard Base64 or decode Base64 as UTF-8 in your browser.
Open encoderURL Encoder & Decoder
Encode an individual URL component or process a complete URL while retaining its structure.
Open encoderHTML Entity Encoder & Decoder
Encode &, <, >, and quotes as HTML entities or decode named and numeric character references.
Open encoderText & Code Diff Checker
Compare text or code versions line by line, with added, removed, and unchanged lines shown in your browser.
Open diff checkerCSV Viewer & Editor
View, search, sort, and edit local CSV data, then export the edited table.
Open CSV editorSQL Formatter & Beautifier
Format or compact SQL locally with dialect, indentation, keyword-case, and statement-spacing options.
Open SQL formatterXML Formatter & Validator
Format or compact well-formed XML locally, while preserving text-bearing content and checking XML syntax.
Open XML formatterYAML Formatter & Validator
Format and validate one YAML 1.2 document, or convert between YAML and JSON locally.
Open YAML formatterRegex Tester
Test JavaScript regular expressions, inspect captures, and preview replacements locally.
Open regex testerUUID Generator
Generate secure UUID version 4 identifiers locally and copy one or a full set.
Open UUID generatorTimestamp Converter
Convert Unix seconds or milliseconds to UTC and local dates, or convert an ISO 8601 date-time back to both timestamp units.
Open converterCron Expression Generator
Build and validate five-field Unix cron schedules and preview upcoming runs in a selected timezone.
Open generatorRandom Generators
Number Generator
Generate whole numbers within inclusive boundaries, with optional unique results and sorting.
Open generatorChoice Picker
Pick one or more distinct entries from a list, with blank lines ignored and exact duplicates removed.
Open pickerWord Generator
Draw words from the locally bundled English word list, with optional repeats.
Open generator