Harlo OS
One OS. Every miner.
Your screen.
Harlo OS replaces the firmware on your Bitaxe, Hammer, NerdQaxe or Bitfortun. One dashboard for all of them, overclocking with no ceiling, and a display you design yourself.
See it running
Real screenshots. Current build.
Every miner in one list
Bitaxe next to Hammer next to NerdQaxe. Different manufacturers, one table, one login.
Overclock until you decide to stop
No ceiling. Type the frequency and voltage you want. Stock values are one click away if you change your mind.
One dashboard
Live hashrate, measured wall power and both temperatures, charted. No guessing.
Your screen, your way
Put the readings you care about on the miner's display, with your own artwork behind them.
Does it run on yours?
17 models from 7 manufacturers today. More added most weeks. Not on the list yet means not yet, not never.
- Bitaxe Gamma 601
- Bitaxe Naja Duo
- Bitfortun BS1
- Bitfortun BS2
- Bitfortun BS4
- Hammer BC04
- Hammer DC02
- Hammer DC08
- Hammer Thor P2
- NerdAxe Gamma
- NerdOctaxe Rev 3.1
- NerdQaxe++ Rev 5.1
- NerdQaxe++ Rev 6.1
- NerdQaxe++ Rev 7
- Nexus L1
- Nexus QX1
- Nexus S1.1
Already on HashWatcher? It keeps working after you flash.
One developer, in the open
JD builds Harlo OS, runs it on his own miners, and ships most weeks. Every update is announced in the Discord before it lands.
What people say once it's running
“This is truly the most control a user can have on their home miner.”
“Block hit on the Harlo OS in less than 1 hour on Fenix Pool.”
“Version 2 has been rock solid.”
Free, and about two minutes.
No account. No app. Flash from your browser.
-
STEP 1
Open the flasher at harlolabs.com in Chrome or Edge and pick your model.
-
STEP 2
Plug in a USB data cable and install. OTA keeps your settings; factory wipes them.
-
STEP 3
Power on. The self-test runs on its own and you're mining.