https://textarray.com/blogGuides on cleaning, converting and formatting text — local-first.enhttps://textarray.com/blog/robots-sitemaps-and-technical-seo-fileshttps://textarray.com/blog/robots-sitemaps-and-technical-seo-filesWed, 09 Sep 2026 00:00:00 GMTMaster robots.txt, sitemaps, and meta tags to guide search engines. Create and test these files in your browser, no upload needed.https://textarray.com/blog/what-llm-tokens-and-prompts-costhttps://textarray.com/blog/what-llm-tokens-and-prompts-costSat, 05 Sep 2026 00:00:00 GMTHow tokens are counted, why output costs several times more than input, and how to cut a prompt down before you send it. Count and price it in your browser.https://textarray.com/blog/build-utm-campaign-tracking-linkshttps://textarray.com/blog/build-utm-campaign-tracking-linksTue, 01 Sep 2026 00:00:00 GMTCreate consistent UTM campaign tracking links that your analytics recognizes. Learn each parameter, encode URLs correctly, and build trackable links—no upload.https://textarray.com/blog/edit-ai-written-text-to-sound-humanhttps://textarray.com/blog/edit-ai-written-text-to-sound-humanThu, 27 Aug 2026 00:00:00 GMTThe phrases, rhythms and invisible characters that mark a draft as machine-written — and a repeatable editing pass that removes them without flattening it.https://textarray.com/blog/extract-and-format-phone-numbershttps://textarray.com/blog/extract-and-format-phone-numbersSun, 23 Aug 2026 00:00:00 GMTPull phone numbers out of messy text and normalize them to E.164 or national format entirely in your browser, so a contact list never leaves your device.https://textarray.com/blog/control-ai-crawlers-with-robots-txthttps://textarray.com/blog/control-ai-crawlers-with-robots-txtTue, 18 Aug 2026 00:00:00 GMTAllow or block GPTBot, ClaudeBot, Google-Extended and other AI crawlers in robots.txt — what each bot does, and why training and answers are different choices.https://textarray.com/blog/normalize-unicode-and-strip-accentshttps://textarray.com/blog/normalize-unicode-and-strip-accentsWed, 12 Aug 2026 00:00:00 GMTSame-looking text that will not match? Learn the Unicode normalization forms and how to strip accents for URLs and search, all in your browser, no uploads.https://textarray.com/blog/detect-zero-width-and-invisible-charactershttps://textarray.com/blog/detect-zero-width-and-invisible-charactersTue, 04 Aug 2026 00:00:00 GMTDetect invisible and zero-width Unicode characters hidden in pasted text, and clean them out in your browser: no upload, no account, and works offline.https://textarray.com/blog/anagrams-palindromes-and-word-puzzleshttps://textarray.com/blog/anagrams-palindromes-and-word-puzzlesSat, 25 Jul 2026 00:00:00 GMTVerify anagrams, find palindromes, check pangrams and scramble words, all in your browser with no uploads. Free tools for word games and for teaching.https://textarray.com/blog/create-vcard-and-contact-qr-codeshttps://textarray.com/blog/create-vcard-and-contact-qr-codesThu, 16 Jul 2026 00:00:00 GMTBuild shareable digital business cards with vCard files and QR codes. Add mailto and WhatsApp contact links, all processed in your browser with zero uploads.https://textarray.com/blog/calculate-chmod-and-subnet-valueshttps://textarray.com/blog/calculate-chmod-and-subnet-valuesThu, 09 Jul 2026 00:00:00 GMTConvert file permissions to chmod octal notation and work out IP subnet ranges from CIDR. Fast, local tools for sysadmins and for DevOps engineers alike.https://textarray.com/blog/validate-ibans-credit-cards-and-emailshttps://textarray.com/blog/validate-ibans-credit-cards-and-emailsSun, 28 Jun 2026 00:00:00 GMTFormat validation for IBANs, credit cards, email addresses and URLs in your browser. No upload, no account, works offline: catch errors before you submit.https://textarray.com/blog/understand-and-build-cron-expressionshttps://textarray.com/blog/understand-and-build-cron-expressionsFri, 19 Jun 2026 00:00:00 GMTLearn to read and write cron expressions: parse the five fields, master common patterns, and turn schedules into calendar events. All in your browser.https://textarray.com/blog/convert-yaml-json-and-typescripthttps://textarray.com/blog/convert-yaml-json-and-typescriptTue, 09 Jun 2026 00:00:00 GMTConvert between YAML, JSON and .env, and generate TypeScript types from JSON. Everything happens in your browser: no uploads, no accounts, offline-ready.https://textarray.com/blog/format-xml-and-convert-to-jsonhttps://textarray.com/blog/format-xml-and-convert-to-jsonMon, 01 Jun 2026 00:00:00 GMTPretty-print tangled XML and convert to JSON formats in your browser. No upload, no account. Handle legacy APIs and modern data flows locally and securely.https://textarray.com/blog/format-and-minify-csshttps://textarray.com/blog/format-and-minify-cssSat, 23 May 2026 00:00:00 GMTLearn how to beautify minified CSS for debugging and minify your stylesheets for production. Free CSS tools that run in your browser, no upload needed.https://textarray.com/blog/format-and-minify-sql-onlinehttps://textarray.com/blog/format-and-minify-sql-onlineTue, 12 May 2026 00:00:00 GMTFormat messy SQL queries into readable code, or minify one for embedding, all in your browser with no upload. Works offline and keeps your data private.https://textarray.com/blog/convert-csv-to-html-tables-and-jsonhttps://textarray.com/blog/convert-csv-to-html-tables-and-jsonMon, 04 May 2026 00:00:00 GMTTurn CSV exports into HTML tables or JSON instantly, in your browser. Handle any delimiter, deduplicate rows by column and keep the file off any server.https://textarray.com/blog/shannon-entropy-and-password-strengthhttps://textarray.com/blog/shannon-entropy-and-password-strengthFri, 24 Apr 2026 00:00:00 GMTLearn what Shannon entropy is and how it measures password strength in bits. Discover why length matters more than symbols, and how to reach true security in your browser.https://textarray.com/blog/count-syllables-and-measure-readabilityhttps://textarray.com/blog/count-syllables-and-measure-readabilityWed, 15 Apr 2026 00:00:00 GMTLearn how syllable count and readability scores help you write clearer text. Measure Flesch score and reading time instantly in your browser, no upload.