Half-Byte Loader

Heads up. God of War PS4 Pro Limited Edition ships with firmware 4.73. (Affiliate link)

What is it?

If you have firmware 6.60 or below, you might want to install a Custom Firmware rather than HBL.
This page is the official Download page for Half-Byte Loader. If you have questions please check the FAQ. For the latest news about Half Byte Loader, check the HBL Category on this blog.
Half-Byte Loader (HBL) is an open source Homebrew Loader for the Sony PSP. It allows to play fan-made games on any PSP up to firmware 6.39. HBL allows to run emulators for the Game Boy, Game Boy Advance, Nintendo 64, Sega Megadrive, NES, Super NES… and many other applications.


The Version of HBL you need to download depends on the firmware of your PSP, and is independent of the model (it works on all models, 1000, 2000, 3000, and PSP Go). Click on the firmware installed on your PSP to be redirected to the appropriate download page:

If you have a firmware below 5.03, we suggest you upgrade to 6.20 and install TN Hen.

Additional downloads

If you’re looking for good homebrews that run on your PSP, don’t look any further, those are 15 games and utilities that will keep you entertained for hundreds of hours.

How to use

Check the README.txt file in the zip file 🙂

More Info

HBL is a work in progress and sometimes it might fail to load your favorite homebrew. However we believe it is harmless for your PSP and I personally test my work on several PSPs before releasing it. We are also confident that this program cannot “brick” your psp and it will not void your Sony Warranty.

HBL is open source, the compiled versions I provide are a compiled version of the sources available freely here

Need Help?

If you have questions/issues please go to the official forums

Want to Help?

HBL is a work in progress and we need your help. Bug reports, test reports, and code patches are welcome. I also accept donations if you want to support my releases.

3,606 Responses

  1. dan says:

    fantastic thank you

  2. Lampworker says:

    “HBL is currently the ONLY way to play homebrew games on any PSP that has a firmware >= 5.50, and especially on the PSP Go.”

    Pandorable psp’s may disagree 😛 But I’m just nitpicking 😉

  3. WOLOLO says:

    I am SO happy that this works with some emus

  4. KenshynPT says:

    Picodrive works ( no sound tough)
    s9xTYLmecm (snes emul) works, but slow FPS’s
    NesterJ (nes emul) fully works
    SMS ( fully works)
    mame emul and neo geo ones dont work :c

    ** neo geo pocket does 😀

  5. wololo says:

    @Lampworker : true but I’m assuming people who have a pandorable PSP won’t come on this page anyways 😀

  6. RedCloud says:

    Were getting so close to getting daedalusx64 to run 🙂 on the current rev (65) it freezes upon loading roms 🙁 Maybe you could look into this when you get time (personality i think you’ve earned a well deserved break.)

  7. RedCloud says:

    Were getting so close to getting daedalusx64 to run 🙂 on the current rev (65) it freezes upon loading roms 🙁 Maybe you could look into this when you get time (personally i think you’ve earned a well deserved break.)

  8. sumedh(india) says:

    hope we get to see all homebew to work on it andi heard that some one is making chickhen r3 wich can be run in this exploit is it ture if it’s ture you are a rockstar for me dude

  9. kacperski1 says:

    Good job, HBL Team 😉 Half-Byte Loader’s running more and more homebrews in newest revisions 🙂 This is AWESOME! 🙂

  10. Axtan says:


    PSP SLIM V3004 with Oficial Firmware 6.00 working with the homebrew fceu-psp.

    Super mario bros 1,2,3 working!!!

    ¡Thank you very much!

  11. Linske says:

    hey.. i’m havin’ some problem here ^^ the moment i start HBL a red colored text appeared it says that: Unable to open GAME folder (syscall issue??)
    -> Using a cached version of the folder’s content.

    What does that mean?
    What should i do?
    please help! ^^ thx

  12. wololo says:

    restart the HBL as many times as needed until the message goes away

  13. Anyone says:

    Good job, but hbl don’t work on all homebrews.

  14. Linske says:

    ok thanks wololo

  15. Linske says:

    Hey! wololo i did it 10 times and something happened on the tenth trial: it says: Test scelodon
    — success
    why is that?

    and it returned to the previous problem… about that syscall issue …

    aww man i thought i could play Homebrew games ….

    help please ^^ thx

  16. Linske says:

    Scelodopen *

  17. man where i put hbl file in my psp???

  18. sumedh India says:

    please help any working gba emul hombrew ,,,,,,,,,,,,cab any one help

  19. Linske says:

    uhh…. i tried to use the HBL Rev66 Beta Debud Version and my problem changed … everytime i start HBl it starts to freeze before it loads the Menu … i know it’s Normal (I Guess) but i tried to start it many times and the same result ….

    well good luck wololo and more power ^^

  20. serpistica says:

    Hi, first of all, thanks a lot!! You guys have done an awesome work!! I’m really looking forward to this =D

    I tried the Pataton 2 Exploit and it loads the h.bin with no problem….

    However, I’m having a problem when loading HBL rv66 and rv65, they simply wont load T_T. However the r31 does load, but freezes on the menu.

    I have downloaded both (r65 debug and non debug), none of them load, my PSP just turns off after 20sec or so…. And what is worst, the debug version wont create a log so I can’t send it in and help in the debugging process T_T.

    My PSP is a 3001 OFW 5.55 (the PSP that came with the Assasin’s Creed Pack).

    Thanks again and keep up the great work =D

  21. RedCloud says:

    @serpistica, you have posted on the last 2 pages ive been on lol, maybe its just a coincidence. Anyway the answer is so simple, SO very simple… just go to the hbl forum (btw this link was posted on both of the pages you asked questions on -_-) http://advancedpsp.tk/foro_es/viewforum.php?f=39 and stop asking on these pages xD

  22. Dillenger says:

    Wololo, Thanks! This is truly excellent work!

    But, I have a silly question for you:
    How many times do you think you have heard the Patapon Theme song?

    I have been following the HBL loader since it was leaked…
    I think I have heard the Patapon theme at least 1000 times, if not more!

    I noticed in Revision 65+- you thank fanjita and noobz. Did they help with the HBL or was that just due to the eloader concept? I remeber the GTA LCS eloader fondly. That was my introduction to homebrew, and since I saw the “dark side”(or “light side” depending on how you look at it) I have never looked back. Do you think something like DevHook again?

    Keep up the great work and I am really looking forward to Wagic 0.12 on my Go!

  23. Banshee says:

    Thanks for the great help! I’m going to make more videos for n00bs who don’t know what they are doing lmao


  24. wololo says:

    @serpistica: you have an old save file. Download the new one from this page and stop spamming every forum/blog related to HBL.

    @Dillenger: Fanjita kindly contacted me and sent me the sources of the N00bz eLoader. Some of the code of the HBL comes directly from the n00bz eLoader.
    It was easier back in these days, because there was no syscall randomization, so we cannot entirely reuse the noobz eLoader, just a few concepts. The HBL would have been 100% complete a long time ago if syscall radomization wasn’t in the way 🙁

    The GTA:LCS eLoader was also my introduction to homebrew, the N00bz era is full of great memories for me 🙂

  25. banana bomb says:

    I’ve played Doom with hbl, but then I’ve got a lot of errors!
    Test scelodon
    – success

  26. Peppe 46 says:

    when arrive the iso-loader???

  27. Muffinhead says:

    *smacks Peppe 46 REALLY hard across the room!*

    ………..*now kicks him.*

  28. sda says:


  29. wololo says:

    @sda: This revision has been tested on a Phat and on a PSPGo, so before insulting my work, make sure you have all the correct files AND if you still have a problem submit a proper bug report (dbglog + what you see on the screen)
    Also if you want me to test on all types of psp, please don’t hesitate to offer me the same model as yours so that I can complete my collection. I’m accepting money donations as well.

  30. Johnny says:

    Well T.O.M.E works on my PSP3000 at 6.20 😉
    However i can’t seem to get Wagic to work, sticks on Lopping HBL Treads.


  31. Elidson says:

    It’s a great job guys. I test master system emulator on my PSP 3010 6.20 and work’s, but without sound. It’s really awesome! Great progress.

  32. Bighead says:

    hello nice work guy but i have a problem.i want play counter strike but it writing this:Looping HBL Thread.what is this?thanks for reply

  33. RedCloud says:

    geez, posted on the wrong page last time :/ You should post r70 (although im not demanding it lol), this one is missing a file. I know its not a huge update or anything but its still important

  34. wololo says:

    RedCloud, revisions 69 and 70 are identical, the file that was missing is just important for compiling on linux

  35. boygeorge says:

    wololo and all who helped, amazing work.
    has anyone gotten snes emulators to run on psp go 6.20?

  36. nirav says:

    it work on pspgo

  37. krazykanuck says:

    these guys who have spent alot of time on this hbl loader .. really apperciated .. ive been with the hbl project from when it was first released and all i can say is WOW the dev team is great .. and the rest of the team that is helping out any way possible is fantastic alot of work has gone in to this ….

    all cause of this i am able to play almost all the classic games i grew up on

    again u guys ROCK!! keep up the great work!!!

  1. May 2, 2010

    […] Half-Byte Loader […]

  2. May 8, 2010

    […] Half-Byte Loader […]

  3. May 9, 2010

    […] If you're new here, you may want to subscribe to my RSS feed. Thanks for visiting!Wololo lançou uma nova versão do Half-Byte Loader para o PSP e um novo savegame que deve ser usado com […]

Leave a Reply

Your email address will not be published. Required fields are marked *

Most comments are automatically approved, but in some cases, it might take up to 24h for your comments to show up on the site, if they need manual moderation. Thanks for your understanding