Learn what your files contain.
Practical guides on file formats, data conversion, and private browsing.
What Is a Markdown File and How Do You Open One?
Learn what Markdown files are, why they're popular, and how to open them privately in your browser.
How to Convert JSON to CSV or Excel Safely
Convert JSON data to CSV and XLSX formats privately in your browser. No upload required.
7 min
MarkdownHow to Turn Markdown into a PDF Without Uploading Your File
Make a PDF from a Markdown file privately in your browser, using the reader you already have. No upload, no account, no server.
5 min
XMLHow to Convert XML Records to CSV or Excel
Convert XML data with repeated records to CSV and Excel formats privately in your browser.
7 min
ComparisonCSV vs XLSX: What Is the Difference?
Understand the differences between CSV and XLSX formats and when to use each.
6 min
All Articles
How to Convert JSON to CSV or Excel Safely
Convert JSON data to CSV and XLSX formats privately in your browser. No upload required.
How to Turn Markdown into a PDF Without Uploading Your File
Make a PDF from a Markdown file privately in your browser, using the reader you already have. No upload, no account, no server.
How to Convert XML Records to CSV or Excel
Convert XML data with repeated records to CSV and Excel formats privately in your browser.
CSV vs XLSX: What Is the Difference?
Understand the differences between CSV and XLSX formats and when to use each.
How to Open XLSX Files Online — Privately and Free
Learn how to open Excel workbooks in your browser without uploading your data to a server. Fast, private, and no sign-up required.
How to Open and Understand an XML File
Learn how to open, read, and understand XML files using a browser-based viewer.
How to Read DOCX Files Online — Privately, Without Microsoft Word
Learn how to read Word documents in your browser without uploading them to a server. Private, free, and no sign-up required.
How to Read a JSON File as a Human-Readable Table
Learn how to transform JSON arrays into searchable, sortable tables in your browser.
How to Read Log Files Faster with Search and Level Filters
Parse, filter, and analyze log files in your browser with level filters, time ranges, and search.
How to View Large CSV Files in Your Browser
Open and explore large CSV files with search, filters, sorting, and virtualization in your browser.
JSON vs YAML: Which Format Should You Use?
Compare JSON and YAML for data serialization, configuration, and human readability.
Log Levels Explained: TRACE, DEBUG, INFO, WARN, ERROR, and FATAL
Understand standard log levels and when to use each one for effective application logging.
Why a Browser-Based File Viewer Can Be Better for Sensitive Files
Understand the privacy advantages of browser-based file processing and when local processing matters.
JSON, XML, YAML, TOML, CSV, and Logs Compared
A comprehensive comparison of structured data formats — their strengths, weaknesses, and ideal use cases.
What Is TOML and Why Is It Used for Configuration?
Learn about TOML — the minimal configuration format designed to be obvious and easy to read.
What Is YAML? A Beginner-Friendly Guide to YAML Files
Learn what YAML files are, how they work, and why they're popular for configuration.