Browse Tools Top 100
UF2 BIN
File conversion

Convert UF2 to BIN

Convert now
Verified by Adam B.· reviewed by FE Editorial ·updated Jun 18, 2026
QUICK ANSWER
Is it possible to convert UF2 to BIN?
Yes - UF2 converts to BIN.

You can do it right here with our free converter - no sign-up, and your file is deleted right after.

Run uf2conv.py firmware.uf2 -c -o firmware.bin (the -c flag converts instead of flashing). The tool strips the UF2 wrapper and writes the raw payload; note that the original flash target address stored in the UF2 blocks is dropped, so the .bin is just the flat image.

Also to BIN: B64 · XDELTA · HEX

On this page

Tested on macOS, Windows & Linux
Last verified Sep 2026

More free converters

HEIC, PNG, WEBP, MP3 and more - every tool here is free.

Open the toolbox
UF2 → BIN converterFREE
Drop a .UF2 file here
or pick one - we convert it to .BIN and give you the file to download

Why convert UF2 to BIN?

UF2 is a USB-drag-and-drop firmware container that wraps the real image in 512-byte blocks carrying flash addresses and a family ID, while .bin is the raw byte-for-byte firmware image. Developers unpack UF2 to .bin when they need to flash over SWD/JTAG, inspect the image, or feed it into another toolchain that expects a plain binary. Microsoft's own uf2conv.py from the microsoft/uf2 repo does this both ways.

How to convert UF2 to BIN

uf2conv.py (Microsoft UF2 tools) OPEN-SOURCE

From the microsoft/uf2 repo run uf2conv.py firmware.uf2 -c -o firmware.bin. The -c/--convert flag writes a file instead of flashing a device.

uf2conv Python - default output FREE

Run uf2conv.py firmware.uf2 -c with no -o and it defaults to flash.bin when it detects binary output. Requires Python 3.

About these formats

.UF2 UF2 Firmware File

A UF2 file is a firmware image in Microsoft's USB Flashing Format, used to program microcontroller boards over USB. You do not open it in an app - you put the board into bootloader mode so…

Open .UF2 details →
.BIN CD/DVD Disc Image (BIN/CUE)

A BIN file is most often a raw, sector-by-sector copy of a CD or DVD that ships with a matching .cue text file describing the tracks. Mount it with PowerISO or DAEMON Tools Lite (point them…

Open .BIN details →

Quality & what to watch

  • The flash target/base address carried in the UF2 blocks is not preserved in the flat .bin; you must know the correct offset yourself when reflashing.
  • If the UF2 had gaps between address ranges, the resulting .bin may be padded or start at the wrong offset - check the base address.
  • The .bin alone carries no family ID, so you lose the device-family safety check that UF2 provides.

Frequently asked questions

What's the exact command?
uf2conv.py firmware.uf2 -c -o firmware.bin. The -c flag means convert only, don't flash.
Do I need Python?
Yes, uf2conv.py is a Python 3 script from the microsoft/uf2 repository. There's also a Rust port, uf2conv-rs.
Is the flash address kept?
No. The target address in the UF2 blocks is dropped, so the .bin is a flat image and you must supply the offset when flashing.
Can I convert back to UF2 later?
Yes, run uf2conv.py firmware.bin -c -b <base> -f <family> -o firmware.uf2, supplying the base address and family ID.