Viewing Mod
Afterbirth Save Editor
Edits Afterbirth save files.
Created 8 years ago
This is a pretty functional save editor for The Binding of Isaac: Afterbirth. It currently supports editing known stored values like mom kills/eden tokens/etc, endings seen, post-it note progress, collected items, secrets unlocked, bosses defeated, challenges completed, and special seeds unlocked.

It's windows-only, but it should support both steam cloud and offline saves.


Please back up your save files before you edit them to avoid the risk of (permanent) save corruption.


Notes/Instructions:

All three save slots need to exist for this to work. If you don't have save files for slots 2/3, start and stop a new run in those slots before using this.

I would not recommend editing files while the game is open. Close the game before opening the editor and making changes.

For the vast majority of use cases, just hit auto-load and the save editor will automatically locate your steam cloud saves. If you want it to automatically locate your offline saves, uncheck the "using steam cloud saves" box before hitting auto-load -- it'll locate the savedatapath.txt file in your afterbirth exe folder and read a save location from it.

You can manually load a folder using the open manually button -- if the steam cloud folder is checked, load the "250900" folder in your steam userdata folder. If it isn't, load the "The Binding of Isaac Afterbirth" folder in Documents/My Games.

If you're editing steam cloud saves, it will (try to) automatically update the steam cloud hash on save, preventing steam cloud from downloading the stored online save and wiping your edits.

Source code is available here: https://www.dropbox.com/s/l9kyh1snsc0r7nv/Afterbirth%20Save%20Editor%20v1.0%20%28src%29.zip?dl=0

Warning: The source is very, very bad.

21187

downloads
x 872
The tool crashed when opening the savefile
How can I make it work on Repentance?
did it exist a mac version ? sorry for my english is there some error
I guess it does not work with Repentance
it's easy. click the download button
it says afterbirth not afterbirth+
i know this is probably a frequently asked but can you make an afterbirth+ version or support for it?
when i start a run with isaac he starts with missingNo. ? only on isaac and only on that save file i used the mod on :s
When I try to edit it comes up with an error message saying "Save 2 is too old to be loaded." How can I resolve this? I just updated to have Booster Pack 5
keeps telling me savefile 1 does not exist.
how do you save/backup the files first
i got afterbirth,i deleted mods,started a run in the 3 files,unlocked and saved in the 3 files,and is not working why?
pls make a vídeo about how to use this

https://moddingofisaac.com/img/fly_explode.gif
how do i get this to work? it keeps telling me it cant find my files

It works, Thank you very much, now i got 1001%!
For some reason, I have the error "Valid folder, but persistentgamedata1.dat doesn't exist." (I have already 3 files with this name) and when I try to load my save files with Steam Cloud says "Program was unable to locate saves." any fix or help? Thanks.
Can you plz make this 64 bit? it says it needs 84 bits which i dont have
that's because there's no such thing as an 84 bit os
Thank you, I can now play with my ps4 save on pc
please make one for afterbirth+, me and many other players would greatly appreciate that as this mod is extremely useful for just having fun. thx
Can you make one for Afterbirth+? I don't want to reset my afterbirth progress when I play
can u make save editor for afterbirth+?
Warning if you plan to update to afterbirth plus with this mod effecting your save files it will fuck with which character gets who's achievements. when i beat greedier mode with Isaac i got plan c which your supposed to only get with greedier mode Lazarus.
A question how can i open all the challenges
doesnt work for afterbirth+, will you be updating this?
It don't work with afterbirth+, do you plan an update?
I keep getting the same error "unable to update steam cloud sha1 hash", any ideas on how to fix this?
it wont let me download it as it wont extract
really hope this gets updated to afterbirth+
there are somethings i dont want to go through the pain of unlocking
the point of this mod to get achievements you did but you used mods so it didn't unlock
Does this work with Afterbirth+ as well?
didn't get it yet but i can already tell this is going to help me get my old files instead of chea- i mean working it all back, ya that.....
Can you please update it to Afterbirth+ I would be grateful!
There will be a compatibilty with AfterBirth+? Cause i have a bug and i can't get a achievement without this mod :/
Thanks!
Here's a link to the old Rebirth editor for those interested: https://www.reddit.com/r/themoddingofisaac/comments/2qurrq/tool_rebirth_save_editor_v01/
RUN AWAY! AFTERBIRTH + ISN'T SUPPORTED


maybe
buen mod aunque aun conservo mi save original
will you update it for afterbirth+
I don't have it but what exactly is this used for?
im going to try it with afterbirth plus i will give information when im done
just finished and it does not work mod creator if you update it to afterbirth plus i will be happy
good mod. thanks. when afterbirth +?
Doesn't work. Keeps telling me save 3 is too old. Despite I just did exactly what it asked me to for it.
Same problem but says 2 for me
It should be installed correctly and I have all three files with stuff on them but it still isnt working. Could it be because of afterbirth plus?
How can I change the number of the eden tokens? (I already have 1001% but I only have 109 eden tokens. I am worried to spend them! MY PRECIOUS EDEN TOKENS!)
Bottom left of the screen there is an slider with different options, it reads "Mom kills" at first. You just need to click and look for the Eden tokens option.
this have any chance to get banned on steam ? because i get all the achievements...
https://www.reddit.com/r/themoddingofisaac/comments/2qurrq/tool_rebirth_save_editor_v01/

It works
This is cool!


isuckatgivingfeedback
Got this error. Don't really want to try using it until I can get some clarification; anyone know how to approach this?
I'm not sure but I think you're missing a file to run the program.
If you're looking for a way to give yourself items/switch character items for fun you probably want to use the afterbirth custom challenge launcher, it's a bit more efficient.
But if you're trying to give yourself an auto 1001% then your probably going to have to google search about not having the file.
It stopped happening for some reason lol, so it works now. Don't know what caused it, but luckily it's no longer an issue.
Used it on my 3rd save file for mods.
Can you please make it mac compatible?
My brother deleted all my progress
im gonna ask evry mod creator this: is it rebirth compatable?
"Valid folder, but peristentgamedata1.dat doesn't exist." Please help... Tried reinstalling the game twice.
i think you have to have done a run in all three saves
i think you have to have done a run in all three saves
https://www.reddit.com/r/themoddingofisaac/comments/2qurrq/tool_rebirth_save_editor_v01/

It works
No it doesn't. Because .exe files are only for windows (not sure about linux tho)
10/10 Accidently Made My Profile 1001% and Don't Feel Like Changing It
Really good but unfortunatly isn't for mac.
So maybe make this mod work? ..and not broken
it wont recognize the save files or anything at all

Anyone knows a editor that actuality works
https://www.reddit.com/r/themoddingofisaac/comments/2qurrq/tool_rebirth_save_editor_v01/
Hey Great mod but there are bugs. Take an example(or several):

1. i tried to equip box of friends(spacebar item) on eve and it didnt show up in gameplay. infact the spacebar item was empty as i picked up jar of flies later.

2.on the Same eve run, i equipped her with 3 guppy items, BUT despite the items showing their effects, i didnt transform into guppy!!!!

3. on the same eve run, familiars didnt work. i had incubus and guppys hairball but none of them showed up!!!!!

Thats all for Bugs but for an update, you could:
1.Make it so lilth can have transformations!
Oh and also it would be f-ing awesome if you could add 'N' number of an item into your passive item pool thingy and you would have an N number of that item in game.

for example it i put like 5 incubuses in the item pool you should have 5 incubuses following around in game. Ik this works with certain items like guppy's collar but make it happen for every passive item!

Thanks in advance!
I'm downloading it now! Hope it works!
My computer says the file isn't safe, I know this works, how can I make it work?
Its perfectly safe. run the program as administrator or disable your anti virus
It worked! It worked! IT WORKED! Thank you so much for this amazing mod!
wont work for me. i have afterbirth not through steam. it just says that it cant find any saves
Cuz it looks for save on staem cloud. sorry
Is it supposed to give achievements? If so, I didn't get any...
amazing! i got 1001% with this!
Ingame? This is a save editor my friend. Check the custom challenge creators, they might have your solution.
Works flawlessly for me, thank you so much for saving me an eternity
The Best Item Editor For Afterbirth!
Thanks
The program tries to load persistentgamedata1.dat, but I have AB_persistentgamedata1.dat since I have Afterbirth. It obviously says me that the folder is valid, but it didn't find the correct file... Help? Thanks
не работает мод
Will there be challenge support?
my norton security wont allow me to open it
never use norton, dude it sucks
i know but i have to my dad has it for this pc
does this mod give steam achievments?
Really? Because it didn't for me...
Probably check if on your runs, were achievments disabled?
Hello, would it be possible to add the function to be able to edit the amount of coins in the donation machine? I was messing around with an overpowered run where whenever I shot out bombs, the entire screen would fill up with sad bombs that shot parasite ipeacs everywhere, I accidentally used this in a shop and in an instant, all 386 of my coins were gone from the machine. I tried to put most of them back but it jammed on the first coin. I don't want to have to force unlock all the donation machine unlocks, because I liked being able to bomb it for spare coins if I needed money. Please help!
You can use Glowing HourGlass to get 999 coins again, it's easy , only u need is this item and batteries to buy
Oh no, just about to die during the It Lives! fight!!
Might as well use this mod.
it wont let me edit anything!! i click save or watever and it says succuss blah blah blah but wen i join the game it acts like it hasent been edited!
I have the same problem. Does anyone know any solution? Or did you already find one?
how does this mod work?
seems interesting
i think it edits save files downloaded on your computer...(from my experiences with Gibbed Save Editor)
Nice program! Let's people like me finally get to experience Lost and the Keeper, although they both are terrible characters they are still fun to play.
The lost was rebirth's challenge character, who was then buffed into being the 1st/2nd best character (d6 isaac is debatable) once you git gud.

The keeper took the place of being afterbirths challenge character.

Niether is terrible, they just aren't easy.
Are you able to change a character's stats? I would love to max out my luck and see what it can do. But I don't wanna do anything until I have the necessary information I need. After all, who wants to have their file corrupted?
Wait, it is saying that it can't locate any saves. Darn :\
I'm using a mid 2011 MacBook Air.
It is impossible for anyone to mod character stats, only starting items. It will change in Afterbirth+ though
This Mod is AWESOME!!! i finally can have a 101% save
Unhandled exception. for everything I do.
Same here. It also fails to actually edit my save in the end, making it useless. No offence intended, I admire the bravery in even attempting to make this
How can I unlock the D6 with this?
Unhandled exception
Ab persistant gamedata.
Yeah I don't foken get it. It's really annoying. I just want to unlock the D6.
I read it again, you may have to play a little bit of one game on your alternate saves.
this one can corrupt your issac? T-T
But it doesn't increase damage but it seems to me the damage was more
this mod restart my save.. THANK YOU....
Doesnt work for me. Selected the polaroid and negative and when it saved it wasnt ingame.

I tried manual loading but that came up with persistantsave or something with no AB at the start

anyone know?
is there anyway this could be used to get a lot of eden tokens?
It keeps telling me that it cant find the persistentgamefiles when they are there!
It had a error loading the save files for both folders and steam cloud. I believe it may have to do with Binding of Undertale mod? Idk.
The link to the Error message I get from the details is here.

http://justpaste.it/qvq2
HELP!!!! I CRASH WHEN EVER I LOAD UP MY GAME!!! IS IT POSSIBLE TO FIX IT!!!!
it says "program was unable to save localtes" pls halp
it says "program was unable to save localtes" pls halp
I actually tried to unlock Epic Fetus and Tech.5 with this by ticking the challenges, but i still don't get the items, even if I use specific seeds.
Make sure you have them unlocked in the "secrets" tab I'd say thats how I got my stuff to unlock!
doesn't let me open save files? gives me a popup saying the program has failed and i can quit or continue and it doesn't work if i continue.
it wants from me persistentgamedata but i have ab_persistentgamedata. Someone help pls.
Hello! For me, it helped to enable Steam's Cloud saving, start the game once to sync and then start the editor again.
Can my Steam Profile get Banned from all the Achievements that i get in these seconds?
im trying to load my save, i have the files for save and 3 used, but manualy loading and automaticaly loading the data has caused an error saying a file is missing, or saying the file was to old, the dlc is installed, and active, the data save was imported from rebirth via in game when the dlc was released, im not sure what im doing wrong
Why are all of the files .Zip folders cuz I don't have winzip I cant use any of the mods
Get 7zip, it's a really good program that can extract zip,rar,etc
can you make a rebirth version I don't have after birth yet
Thanks. I got really sick of waiting for Afterbirth on the PS4 so I just copied my progress with this after buying the game for PC. Saved me a crapton of time.
Question. When it says "Mom Kills" does it mean just killing mom, or killing mom's heart?
Ever heard of a mac? Try considering windows isn't the only computer.
Patience must you wait, soon is porting.
I believe that they are easier to work with though, and many people play Isaac on windows since it is more game-friendly.
wine! use custom select and on drive y
I dosn|t Work Becouse I Haven|t installt steam on C And If i try manyually it say üersitsgamdatae3.dat not found
Well then do a manual detect... and also the problem i have is that it looks for gamedata2 and when i have gamedata1 but i dont know if that would be a problem for you.
ok.. i dont get it :c how do i find my files? everytime i "auto-load" it says that it could find the files. and when i "manually open" my folder where my saves are.... it says that there is not the file that is wanted (persistentgamedatae1(2,3).dat)

HALP xD
Go to your steam folder and click userdata (or something) then go to the (your user id) file # then go to the file named 250900, use that file. (the file named 250900. also you can get to the steam from the C: or localdisk folder from the computer section in the start member and click either the steam if its right there or click prgram files x84 or whatever then find steam.) your welcome.
for some reason i cant see my 250900 folder do you know what my problem is
i found with your second method but i cant get to the saves and if i click the 250900 folder it says
"Unhandled exception has occurred in your application. If you click Continue,etc"
Ok, I need a Linux version if I'm going to actually use this anytime soon. Though that's probably not going to happen...
Aww man, a way to unlock The Lost without the tediousness!
This is good even though all I use this for is to give myself more Eden tokens .
Hey, how do you edit values, I need help -_-
Will this ever come out for mac computers? Just asking, and if not. Some plz link a .exe opener for mac!
http://macindows.en.softonic.com/mac
This is wine bottler: http://winebottler.kronenberg.org
It works for almost every exe file there is
Don't need to worry about compatibility issues anymore got a new computer
galaxylife69 podes descargar con isaac-ng le pones que no sea steam con isaac-ng ok
no sabes si se puede con la version pirata?

Necesitas tener la version COMPRADA de the binding of isaac.
Are the post-it note changes only aesthetic? My problem is I accidentally overwrote an old save by choosing to push the wrong files to the Steam cloud. Would this count toward the platinum god steam achievement progress at all? Or, is there a mod that would help with this? Great mod, btw. Worked like a charm for the post-it note updates.
The post-it notes are 99% aesthetic...but it's worth noting that the game's "all-hard-mode-post-it-note-completion" baby unlocks are actually based off of the post-it note, so if you don't have those the post-it note isn't entirely aesthetic.

If you do it 100% is though.
Thank you. For others' additional reference, what I ended up doing to correct the problem completely was to use the Isaac Character Editor mod to make a really powerful start to complete the deleted runs quickly. Still going to keep this mod in case I want to relock some items
Every time I attempt to use the Program, it refuses to open and my antivirus steps in, any reason for that?
It keeps saying "SONAR" detected
It deletes my shortcut on my homepage, and I'm using Norton AntiVirus btw
you are using Norton...... problem solved
Having the same problem as RaththeRajang, I'm quite new to modding but this makes my first experience not to great. Sorry if i look stupid.
You are starting/ending a run *in save 2*, yes?
This is really cheating but its okay. Its cool to test synergies with.
I mean, sure, but there're also mods that put lots of items in the starting room -- I don't see that as cheating any more than this.

Besides, I'd say this has its legitimate uses -- particularly for re-locking negative unlocks (Sticky Nickels comes to mind...?) once you've gotten 1001%, and since it doesn't actually give you steam achievements I don't feel bad about releasing it.
Yeah. Its a cool mod. Good job on it.
Yay now i can get all my plat god items back!
Keeps on telling me that Save 2 is too old to be loaded, and to start/end a run. After 5 runs, still no results...
What is the use of this mod i don't understand ?


Can this be used to fix the progress marks corrupted after the import back in the beginning of Afterbirth? It's a little confusing and doing dark room with Lost again just to fill the note graphics is not something I'm looking forward.
For people having trouble with "locating the save file," it is very likely to be due to multiple user profiles on the same computer. Try to isolate which ID is yours and you should be able to use the program as intended.
looks amazing
is there any way to use this on a mac?
So I used this mod to get Eden tokens, and now it locked all of my unlocked characters...
Can you plz add the link to download this mod on reddit or something plz
BEST...MOD...EVER. 100000000000000000000000000000000/1
GOT EVERY ITEM (if it doesn't work play all your saves and then try again)
great! only had rebirth on ps4 so had to swap to pc for afterbirth. really quick and straight forward, had no issues
Do steam achievements unlock???
Anybody else trying to edit Maggie's checklist and getting an error message?
I posted this on Reddit as well but no response...

Hmm. Auto load does nothing when I click it. I have AB installed via Steam and I use cloud. The files are where you would expect them to be. When I manually select the 250900 folder I can an error stating "Selected folder is not a valid Steam Cloud save folder." Oh and I do have all 3 saves there. Running Windows 7 with the latest updates.
Not sure what to do from there.
I cant get it to work i have gone through the past 7 months of comments and nothing has worked
Awsome! Though I cant decide if I wanna use this to match my 3ds save file or go through the game again
Doesn't work. It can't seem to find my save data for some reason.
It's looking for the file "ab_persistentgamedata1.dat". But in my save folder, it's actually titled "persistentgamedata1.dat". Anything I could do about this?
I tried to cheat the system by renaming my save file into what it was looking for, and it says the save file is too old?? But I have Afterbirth! So why does the program think my save file is outdated?
Do you have Afterbirth? Your persistentgamedataX.dat saves would have been converted to AB saves. My save folder has 6 saves in it. The 3 original and the 3 with ab_ at the beginning.
how do i use it when i open it i can only interact with bosses and seeds
Please replace File Open Dialog with something more friendly =)
This isnt opening for windows 8.1
It says I didn't defeat "Brownie" nor "Ultra Greed" and I defeated both.

Why?
yes, finally, because fuck the "Brains!" challenge.
And thiiiiiiis comes to life
Thumbs up OP !
Aw shit, this doesn't work, the program just doesn't start up and I can't even find the process, Help !
What doesn't work about it? I've tested it on my system and verified that it works on other ones (and a guy on reddit even said it worked in mono).
It simply doesn't launch, I'm under Windows 8.1. I can tell however something SEEMS to be happening since the cursor changed shape, as if a program was starting indeed. But there is just nothing, I've been waiting for more than 10 minutes now and no changes. Sorry
Well at least I see this isn't an issue exclusive to me. Hope OP will succeed in finding a fix :/
I fixed it!
Assuming you're using Avast too, just disable the protection.
*FACEPALMS AUDIBLY*
fukken worked ! congrats my friends, thank you very much !
IF ONLY YOU'D MADE THIS SOONER! DDD
THIS IS THE BEST MOD IN THE HISTORY OF EVER!
THANKYOUTHANKYOUTHANKYOUTHANKYOUTHANKYOU!
April 10, 2022 - 2 years ago
Hey! We have a new Discord server. You can find more information in the announcements channel there. See you there!