Private Online File Converters
Convert HEIC, WebP, SVG, JSON, CSV, and YAML in your browser memory. Nothing is ever uploaded to a server.
Image Converters
Convert HEIC, WebP, PNG, JPG, and SVG graphics locally.
Convert iPhone HEIC photos to JPG instantly. Nothing is uploaded — the conversion happens entirely on your device.
Convert iPhone HEIC photos to PNG instantly, entirely in your browser — no upload required.
Convert PNG graphics to next-gen WebP format for faster website page loads. 100% private, client-side processing.
Convert JPEG photos to lightweight WebP format to speed up web pages and save bandwidth.
Convert downloaded WebP images into standard PNG format for easy editing and software compatibility.
Convert WebP images into universal JPEG files for email, documents, and printing.
Convert heavy PNG images to lightweight JPG files to cut file size by up to 70%.
Convert SVG vector graphics and logos into high-resolution PNG images instantly.
Convert PNG, JPG, WebP, or SVG images into Data URI Base64 strings for inline CSS and HTML.
Developer & Data Tools
Transform JSON, CSV, and YAML configurations privately.
Convert JSON arrays and API responses to CSV spreadsheets instantly in your browser.
Convert CSV spreadsheets and data tables into structured JSON arrays for development.
Convert YAML configuration files (Kubernetes, Docker Compose, OpenAPI) to JSON instantly.
Convert JSON objects and data payloads into clean, human-readable YAML configurations.
Format, validate, and prettify messy JSON data instantly. 100% private client-side formatting.
Convert JSON arrays into SQL INSERT queries for PostgreSQL, MySQL, and SQLite databases.
Decode Base64 Data URL strings back into downloadable PNG or JPG image files.
Convert Markdown files and README documents into clean semantic HTML markup.
Convert HTML markup and webpage code into clean, readable Markdown syntax.
Convert XML data feeds, RSS feeds, and configuration files into structured JSON objects instantly.
Convert JSON objects and API responses into clean, formatted XML documents.
Why process files locally in your browser?
Complete Data Confidentiality
Cloud converters store your personal files on remote servers. ConvertHit runs WebAssembly code locally so your data never leaves your computer.
Zero Network Lag
No waiting for heavy images or datasets to upload over slow internet connections. Processing finishes instantly on your machine's hardware.
No Limits or Watermarks
Convert unlimited files without daily quotas, paywalls, mandatory account registrations, or invasive watermarks on your output.
Guides & Articles
In-depth guides on image formats, SEO, and developer workflows.
How to Open & Convert iPhone HEIC Photos on Windows 10/11
Learn why Windows fails to open HEIC files and how to convert them into standard JPGs privately.
WebP vs PNG vs JPG: Which Image Format Should You Use?
A comprehensive comparison of file size, compression efficiency, transparency, and page speed impact.
Need a tool that isn't listed?
Request a new converter tool and we will build it for free — email convertly@gmail.com or send a request.