{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-05-20T20:47:38.325Z","discovery":{"catalog":"https://toolsly.tools/tools.json","llmsTxt":"https://toolsly.tools/llms.txt","sitemap":"https://toolsly.tools/sitemap.xml"},"relatedTools":[{"slug":"url-parser","name":"URL Parser","url":"https://toolsly.tools/url-parser"},{"slug":"user-agent-parser","name":"User-Agent Parser","url":"https://toolsly.tools/user-agent-parser"},{"slug":"http-status-code","name":"HTTP Status Code Lookup","url":"https://toolsly.tools/http-status-code"},{"slug":"mime-type-lookup","name":"MIME Type Lookup","url":"https://toolsly.tools/mime-type-lookup"},{"slug":"subnet-calculator","name":"IPv4 Subnet Calculator","url":"https://toolsly.tools/subnet-calculator"},{"slug":"css-minifier","name":"CSS Minifier","url":"https://toolsly.tools/css-minifier"},{"slug":"css-beautifier","name":"CSS Beautifier","url":"https://toolsly.tools/css-beautifier"},{"slug":"html-minifier","name":"HTML Minifier","url":"https://toolsly.tools/html-minifier"}],"kind":"utility","slug":"csv-validator","name":"CSV Validator","description":"Validate CSV data — check column consistency, count rows and surface parse errors.","longDescription":"Paste any CSV (or TSV / pipe-separated / semicolon-separated) data and get a structured validity report. The validator counts rows and columns, finds rows whose column count doesn't match the modal count, and surfaces any parser errors with their row number. Auto-detection picks the most likely delimiter, or you can pick one explicitly. Powered by Papa Parse. Runs entirely in your browser — your data never leaves this page.","category":"dev","categoryName":"Dev","keywords":["csv validator","csv validator online","validate csv","csv lint","csv checker","csv error finder","csv column count","csv inconsistent rows","online csv validator","csv validator free","check csv file","tsv validator"],"badge":"Validator","url":"https://toolsly.tools/csv-validator","inputs":[{"type":"text","key":"csv","label":"CSV","placeholder":"name,age,city\nAlice,30,NYC\nBob,25,LA","multiline":true,"monospace":true},{"type":"select","key":"delimiter","label":"Delimiter","defaultValue":"auto","choices":[{"value":"auto","label":"Auto-detect"},{"value":",","label":"Comma (,)"},{"value":"\t","label":"Tab"},{"value":";","label":"Semicolon (;)"},{"value":"|","label":"Pipe (|)"}]}],"outputs":[{"key":"valid","label":"Valid"},{"key":"rowCount","label":"Rows"},{"key":"columnCount","label":"Columns (modal)"},{"key":"inconsistentRows","label":"Inconsistent rows","multiline":true},{"key":"errors","label":"Parser errors","multiline":true}],"invocation":{"webUi":"https://toolsly.tools/csv-validator","api":null,"notes":"Currently invoked via the web UI at `webUi`. Inputs are form fields; outputs are structured text values. A remote MCP/REST API is planned."}}