String Formatter

Whether you're a developer debugging an API response or a data analyst cleaning up an export, poorly formatted JSON slows everything down. This guide shows you exactly how to format JSON online — free, instant, and without installing anything — using Transfonic's JSON Formatter.

You took a photo on your iPhone, sent it to a friend on Windows, and they replied: "I can't open this." Welcome to the HEIC problem. Since iOS 11, Apple iPhones and iPads save photos as HEIC by default — a format that's smaller and higher quality than JPG, but that a huge amount of software still can't open. The fix is simple: convert HEIC to JPG, the format that works literally everywhere. This guide covers every method, on every device — Mac, Windows, iPhone, Android, Chromebook, and Google Drive — plus how to convert hundreds of files at once, and how to stop your iPhone making HEIC files in the first place. No paid software required. In a hurry? The fastest method that works on any device is a browser-based converter. Convert HEIC to JPG free here — no download, no signup, files auto-delete. The step-by-step OS methods are below if you'd rather use built-in tools.

Converting an Excel spreadsheet to CSV — or bringing a CSV file back into Excel — is one of the most common data tasks people run into. Whether you need to import data into a database, feed a file into an analytics tool, or share clean data with a developer, this guide covers every method, every problem, and every question you will run into.

Word documents are designed to be edited. PDFs are designed to be shared. Once you've finished writing a report, contract, CV, or proposal in Word, converting it to PDF is the final step before it leaves your hands — and it matters more than most people realise.