Can't open a file you were sent? Open it in your browser, without uploading it
Free tools that run entirely in your browser. Your files are not sent anywhere.
Your files stay safe — processed entirely in your browser. Nothing is uploaded.
Conversion Tools
Choose a tool to get started. All processing happens on your device.
What Is This File?
Drop any file and find out what format it is — and what opens it.
WebP to JPG/PNG
Convert WebP images to widely compatible JPG or PNG format. Adjust quality settings for the perfect balance.
HEIC to JPEG
Convert iPhone HEIC/HEIF photos to JPEG (JPG) or PNG so any computer can open them.
Open winmail.dat
Extract and view contents of winmail.dat email attachments from Microsoft Outlook.
Outlook MSG Viewer
Open .msg files from Outlook and pull out the attachments.
EML File Viewer
Open and view EML email files directly in your browser. View headers, body, and download attachments.
VCF/vCard to CSV
Convert VCF/vCard contact files to CSV format. View and export contacts for Excel and other apps.
Fix Mojibake
Detect the encoding of a garbled CSV or text file and save it so Excel opens it correctly. Paste garbled text to recover the original too.
CSV to Excel
Turn a CSV into an Excel workbook (.xlsx) with no garbled text, leading zeros and long numbers kept as written.
Thumbs.db / .DS_Store Viewer
See what is inside the Thumbs.db and .DS_Store files that appear in folders on their own — leftover thumbnails and recorded file names — before you delete them.
Extract LZH / ZIP / 7z / RAR
Extract .lzh, .7z and .rar in your browser with no software to install, open password-protected archives, and recover ZIPs whose file names come out garbled.
Password-Protect a ZIP
Pick files, choose a password, and get an encrypted ZIP. Something Windows 11 cannot do on its own, done in your browser with nothing to install.
Open XDW (DocuWorks)
View DocuWorks .xdw and .xbd files without DocuWorks, and save them as PDF or text.
Open JTD (Ichitaro)
View Ichitaro .jtd documents without Ichitaro, and save them as Word, PDF or text.
Open DXF Files
View DXF drawings in your browser without CAD software. Switch layers on and off, save as PNG or PDF.
Formats without a tool here (.pages, .dwg, .psd, .dat and others) are covered in the format-by-format guides.
Latest from the Blog
How to open files that will not open, and how the formats work.
How to Open a .jtd File Without Ichitaro (Free: Browser, Ichitaro Viewer, Convert to Word)
A .jtd is a document from Ichitaro, the Japanese word processor. Open it in your browser with nothing to install and save it as Word, PDF or text (the file is not uploaded), or use the free Ichitaro Viewer on Windows: where to get it, what it runs on, and what to do on a Mac, a phone, or when the file will not open.
DocuWorksHow to Open an .xdw File Without DocuWorks (Free: Browser, Viewer Light, Phone)
An .xdw is a Fujifilm DocuWorks document. Open it in your browser with nothing to install and save it as a PDF (the file is not uploaded), or use the free DocuWorks Viewer Light on Windows, Mac, iPhone or Android: where to get it, how to install it, and what to do when the file will not open.
CADHow to Open a DXF File Without CAD Software (Free, No Install)
A DXF is a CAD drawing, and a computer without CAD software has nothing to open it with. How to view one in your browser and turn it into a PDF with nothing to install, which free programs open it (Jw_cad, LibreCAD) and DWG TrueView, when to ask for a PDF instead, and why Japanese text comes out garbled.