iCal Converter – Free ICS Tools

Free online iCalendar (ICS) converter. Convert ICS to CSV, JSON, or optimize for Google Calendar. Fix timezones, merge calendars, split by category. All processing in your browser.

Available tools

• ICS to CSV Converter – Convert ICS calendar files to CSV format for Microsoft Excel, Google Sheets, and LibreOffice. Recurring events, timezones, and all fields preserved. Free, instant, browser-based.
• CSV to ICS Converter – Convert CSV files (or Excel exports) into iCalendar (.ics) files for Google Calendar, Outlook, and Apple Calendar. Free, in-browser, supports multiple date formats and timezones.
• Import ICS to Google Calendar – Optimize ICS files for seamless Google Calendar import. Fix timezone mismatches, encoding issues, and incompatible properties. Free browser tool, no upload required.
• ICS to JSON Converter – Convert ICS calendar files to JSON format for REST APIs, web apps, and developer integrations. Structured output with ISO 8601 dates. Free, browser-based, no upload.
• Fix & Clean ICS Files – Repair broken ICS calendar files: fix timezone errors, clean invalid characters, correct line folding, and ensure RFC 5545 compliance. Works with Outlook, Google Calendar, Apple Calendar exports.
• Merge ICS Files – Merge multiple ICS calendar files into a single unified calendar. Handles duplicates, preserves timezones and recurring events. Works with Outlook, Google Calendar, Apple Calendar. Free online tool.
• Split ICS File by Category – Split a large ICS calendar file into multiple files by event category. Automatically detects CATEGORIES and creates separate ICS files. Free online splitter tool.
• ICS File Validator – Validate ICS files against RFC 5545 iCalendar standard. Detects errors, warnings, and compatibility issues with Google Calendar, Outlook, and Apple Calendar. Free online validator.
• Remove Duplicate Calendar Events from ICS Files – Find and remove duplicate events from ICS calendar files. Detects duplicates by UID, title, date, and location. Preview before removing. Free browser tool, no uploads.
• Export Outlook Calendar to ICS – Export Microsoft Outlook calendar to ICS format with timezone fixes. Works with Outlook desktop, web, and Microsoft 365. Fix Windows timezone identifiers for Google Calendar and Apple Calendar compatibility.
• Import ICS to Outlook – Import ICS calendar files into Microsoft Outlook without errors. Fix timezone, encoding, and format issues before importing. Works with Outlook desktop, web, and Microsoft 365.