Kuro Reader is modern, small and full featured comic reader for Android.

Available on Google Play Store
Download App

[SYSTEM]: Butter V5 Locked. Please enter Premium Access Key. In this world, keys weren't just passwords; they were digital currency

You will download a small "fingerprinter" executable. Run it on the server where you intend to host Butter V5. This generates a machine.id file. Warning: Do not run this in a Docker container without passing through the host’s TPM, or the key will be invalid.

: Includes "Mod Wood" capabilities and the "Get Tree" function, which teleports selected trees directly to the player for immediate processing.

[Key Version (4 bits)][Key Type (4 bits)][Payload Length (12 bits)][Encrypted Payload][HMAC-SHA256]

User can deactivate old devices via online account portal. Each PSK allows 3 deactivations per year.

, sat in a cramped apartment lit only by the blue glow of three monitors. He had the V5 file, but he was stuck at the prompt:

The is a verification method used to unlock the full potential of the script. Unlike free versions that often require users to complete "linkvertise" tasks every few hours, the Paid Lifetime Key offers several advantages:

: Instant movement to key map locations, player bases, or specific items like "Endtimes" logs.

Each time the butter.parse() or butter.solve() function is called, the key system deducts credits from your balance. When credits hit zero, the key becomes inert until "topped up."

Every 24 hours, the Butter V5 client performs a handshake with the master authentication server. This is not a simple "Is this key valid?" ping. It is a cryptographic challenge. The server sends a randomly generated blob of code; the client must decrypt it using the private key embedded in the user’s unique license file. Failure to respond within 200ms results in an immediate lockout.

Butter V5 -Key System Paid-

Advanced Library System

Kuro Reader helps you to manage and read your comics from every perspective, it contains everything you need for a comic reader.

  • Browse comics by Authors, Series, Years and Folders.
  • Manage your books with favorites and bookmarks.
  • Organize your comics into collections by simply adding tags to them.
  • Arrange your comics in the way that works best for you: grid or list, you choose.
  • Keep track of your reading with the history.
  • Kuro Reader supports all standard eComic formats including cbz, cbr, cbt, cb7 and pdf.

Development & Support

Kuro reader is an independent project and does not have any external sponsorship or advertisements revenue, and all support for its development is achieved through the sale of the pro version and donations. If it's been helpful for you, please consider purchasing the pro version and unlocking extra features, or make a donation via PayPal.

Currently Kuro Reader has been translated to following languages:
English, Brazilian Portuguese, Catalan, Chinese (Simplified and Traditional), French, Indonesian, Italian, Korean, Odia (Oriya), Polish, Russian, Santali, Spanish, Turkish.

If you can help to translate this application to your native language, please join us in our open projet in Crowdin: https://crowdin.com/project/kuroreader.
If you have any problem or suggestion, please feel free to contact us: .

Butter V5 -Key System Paid-

Screenshots

Screenshot Screenshot Screenshot Screenshot Screenshot Screenshot Screenshot Screenshot Screenshot Screenshot

* The comics used in the screenshots are public domain and free to use

Butter V5 -key System Paid- ((top)) -

[SYSTEM]: Butter V5 Locked. Please enter Premium Access Key. In this world, keys weren't just passwords; they were digital currency

You will download a small "fingerprinter" executable. Run it on the server where you intend to host Butter V5. This generates a machine.id file. Warning: Do not run this in a Docker container without passing through the host’s TPM, or the key will be invalid.

: Includes "Mod Wood" capabilities and the "Get Tree" function, which teleports selected trees directly to the player for immediate processing. Butter V5 -Key System Paid-

[Key Version (4 bits)][Key Type (4 bits)][Payload Length (12 bits)][Encrypted Payload][HMAC-SHA256]

User can deactivate old devices via online account portal. Each PSK allows 3 deactivations per year. [SYSTEM]: Butter V5 Locked

, sat in a cramped apartment lit only by the blue glow of three monitors. He had the V5 file, but he was stuck at the prompt:

The is a verification method used to unlock the full potential of the script. Unlike free versions that often require users to complete "linkvertise" tasks every few hours, the Paid Lifetime Key offers several advantages: Run it on the server where you intend to host Butter V5

: Instant movement to key map locations, player bases, or specific items like "Endtimes" logs.

Each time the butter.parse() or butter.solve() function is called, the key system deducts credits from your balance. When credits hit zero, the key becomes inert until "topped up."

Every 24 hours, the Butter V5 client performs a handshake with the master authentication server. This is not a simple "Is this key valid?" ping. It is a cryptographic challenge. The server sends a randomly generated blob of code; the client must decrypt it using the private key embedded in the user’s unique license file. Failure to respond within 200ms results in an immediate lockout.

*¹ The additional tax may be included depending on your region.