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CSV Viewer: Open, Search, and Sort CSV Files Without a Spreadsheet
Open CSV and TSV files as a sortable, searchable table in your browser. Auto-delimiter detection, RFC 4180 quoted fields, ragged-row warnings, and JSON export —
Robots.txt Generator: Build, Validate, and Test Crawl Rules Without Deindexing Your Site
Build a correct robots.txt with the free browser-based generator — user-agent groups, allow/disallow rules, AI crawler blocking, a linter, and a real URL tester
Open Graph Preview: See Your Social Card Before Anyone Else Does
Preview how your link renders on Facebook, X, LinkedIn, Slack, and Discord with a free browser-based Open Graph preview tool — validate every og: tag before you
Loan / EMI Calculator: How Monthly Payments, Interest, and Amortization Actually Work
Understand the EMI formula, read an amortization schedule, and see what extra payments really save — with a free in-browser loan calculator.
Age Calculator: How to Work Out an Exact Age in Years, Months, and Days
Learn how age arithmetic actually works — calendar borrowing, leap years, the Feb 29 problem — and get an exact age in years, months, and days in your browser.
Number Base Converter: Binary, Octal, Decimal, Hex, and Everything to Base 36
Convert numbers between binary, octal, decimal, hexadecimal, and any base from 2 to 36 with a free number base converter that runs entirely in your browser.
Time Zone Converter: Convert Times Between Cities Without Getting DST Wrong
Convert any date and time between world cities with a free time zone converter that resolves DST-accurate IANA offsets in your browser — plus a meeting planner.
Unit Converter: Exact Conversions for Length, Weight, Temperature, and Data
Convert length, weight, temperature, data, and more with exact standard factors using this free unit converter online — 11 categories, all in your browser.
QR Code Generator: How to Make QR Codes That Actually Scan (and Never Expire)
Create static QR codes that never expire with this free QR code generator online — URLs, WiFi, vCards, SVG and PNG export, all client-side in your browser.