KoboldCpp

KoboldCpp

One self-contained executable that runs models on your own hardware. No install, no account, no service.

Last verified Uncensored AI

What is KoboldCpp?

KoboldCpp is a single self-contained program that loads a GGUF model file and gives you an interface to write with it. Unlike a front-end, it is both halves at once: the thing that runs the model and the thing you type into. Built on llama.cpp, it offers chat, adventure, instruct and storywriter modes, and it reads Tavern character cards so characters are portable.

At a glance

Key facts about KoboldCpp, last verified 10 Aug 2026
CategoryUncensored AI
Pricing modelFree
Starting priceFree
Pricing noteFree and open source. The llama.cpp and GGML libraries underneath are MIT licensed and KoboldAI Lite, the bundled interface, is AGPL-3.0. There is no paid edition.
Free tierYesThe whole program. No paid version, no account, no service to subscribe to.
Free trialNo
Card required at signupNo
Account requiredNo
Payment methodsNothing is sold, so no payment method applies
PlatformsWindows, macOS, Linux, Android
Generation modesText chat, Character chat, Text generation
Content filteringNo documented output filter
Age policyNone stated
Position on minorsNot applicableRuns on your hardware and receives no user content.
Data retentionThe program runs on your own hardware and the model runs inside it, so prompts and generated text never leave the machine unless you deliberately expose the API to a network. There is no vendor, no account and nothing transmitted, which means no retention period exists to publish.source
Trains on your contentNo
Deletion on requestYour own files. There is no account and no vendor-held copy to delete
Anonymous useSupported
CompanyKoboldCpp project, maintained by LostRuins, Not applicable, open-source project
Last verifiedby ClickTugger

Product identity

Identity and operator of KoboldCpp
Official nameKoboldCppVerified
OperatorKoboldCpp project, maintained by LostRuinsDocumented
JurisdictionNot applicable, open-source projectDocumented
Websitegithub.com/LostRuins/koboldcppVerified
Also known asKobold Cpp, KoboldAI Lite, LostRuins koboldcppVerified

Who it is for

People who want local generation without assembling a stack. There is no install step, no Python environment and no separate backend to configure: you download one file, point it at a model and it works. It also suits anyone who wants long-form writing modes rather than only chat, which most local tools leave to a separate front-end.

Who it is not for

Anyone without hardware to run a model on, or without the patience to pick one. Model quality is entirely your choice here and a poor pick produces poor writing that is not the software's fault. Anyone wanting images, voice or a companion with memory across devices should look at a hosted product instead.

Pricing

Nothing. The llama.cpp and GGML libraries underneath are MIT licensed and the bundled KoboldAI Lite interface is AGPL-3.0. There is no paid edition, no subscription and no account. The only cost is hardware you already own and the electricity to run it.

The whole thing is free. There is no tier structure to compare, no trial that expires and no feature held back behind a payment. Models are downloaded separately and the widely used ones are free too.

TierPriceIncludes
FreeFree
  • The complete executable, MIT and AGPL-3.0
  • Chat, adventure, instruct and storywriter modes

No paid edition exists.

Refunds: Nothing is sold, so no refund terms exist.

Signup friction

There is nothing to sign up for at all. No account, no email, no card. You download an executable and run it, which makes this one of the few genuinely anonymous entries in this directory.

  • No card at signup
  • No account required
  • Anonymous use supported

Platforms

Windows, macOS on Apple Silicon, and Linux, plus Docker, Colab and Android through Termux. It ships as a single executable with no installation, and it runs on CPU alone, on GPU, or with layers split across both depending on how much memory you have.

  • Windows
  • macOS
  • Linux
  • Android

Feature matrix

Absence of evidence is not recorded as absence of a feature. Anything that needs an account to confirm is marked not tested rather than "no".

Features of KoboldCpp
Text chatYesDocumented
Character chatYesDocumented
Image generationNot offeredDocumented
Image to imageNot offeredDocumented
Video generationNot offeredDocumented
VoiceNot offeredDocumented
WebNot offeredDocumented
iOSNot offeredDocumented
AndroidYesDocumented
DesktopYesDocumented
APINot offeredDocumented
Runs locallyYesDocumented
Long-term memoryNeeds an accountNot tested
Group chatNeeds an accountNot tested
Custom system promptNeeds an accountNot tested
Model selectionNeeds an accountNot tested

Privacy and data

It does not send anything anywhere. The model runs inside the same program you are typing into, on your own machine, so prompts and output stay in local memory and in whatever files you save. There is no vendor holding a retention policy, no training pipeline and no account to delete. The one caveat worth knowing is that it can serve an API, and exposing that beyond your own machine is a decision with consequences you own.

RetentionThe program runs on your own hardware and the model runs inside it, so prompts and generated text never leave the machine unless you deliberately expose the API to a network. There is no vendor, no account and nothing transmitted, which means no retention period exists to publish.source
Trains on your contentNo
DeletionYour own files. There is no account and no vendor-held copy to delete
Privacy policyRead the vendor policy

Privacy disclosure

Privacy disclosure by KoboldCpp
Trains on your contentStated: nosourceDocumented
Account deletionYour own files. There is no account and no vendor-held copy to deleteDocumented
Deletion control seen workingNo account exists to hold oneDocumented
Chat exportNo account exists to hold oneDocumented
Usable without an accountYesDocumented
Payment methods disclosedYesDocumented

What the vendor lets you know before paying

This measures disclosure, not quality. A good product can document nothing, and that is worth knowing separately from whether it is any good.

Documentation published by KoboldCpp
Price publishedYes, from FreesourceVerified
Operating company namedKoboldCpp project, maintained by LostRuinsDocumented
Jurisdiction statedNot applicable, open-source projectDocumented
Retention period statedNo period givensourceNot documented
Training policy statedYessourceDocumented
Refund terms publishedYesDocumented
Content policy publishedSelf-hosted, not applicableNot documented
Position on minors publishedNot applicableNot documented

Content policy and safety

KoboldCpp documents its output filtering asno documented output filter, and its age policy as none stated.

KoboldCpp does not offer clothing removal from photographs of real people. ClickTug does not list tools that do. Its stated position on the likeness of real people is that documented consent is required.

What the vendor prohibits

  • Nothing is enforced by the software, which applies no filter of its own
  • What a session refuses depends entirely on the model file you loaded

This is a model runner. It contains no content policy and cannot enforce one: the behaviour you get belongs to the GGUF file you chose, and the responsibility for what it produces sits with you and the law where you live.

KoboldCpp runs on your own hardware, so it receives none of what you generate. ClickTug does not require a minor safety policy or an acceptable use policy from a tool that never receives user content, because there would be nothing for such a policy to govern. Any optional hosted tier is a separate service under its own terms.

ClickTug verdict

The shortest path to running a model on your own hardware, and one of two entries here with no vendor at all. KoboldCpp is a single executable that is both the model runner and the interface, with chat, adventure and storywriter modes and Tavern card support. Nothing leaves your machine, so there is no retention policy, no training question and no account to delete. In exchange it enforces nothing: the behaviour you get belongs to the GGUF file you chose, and there is no support, no warranty and nobody accountable.

Strengths

  • Free and open source, MIT underneath with an AGPL-3.0 interface
  • One self-contained executable: no install, no Python environment, no separate backend
  • Runs entirely on your own hardware, so nothing is transmitted and nothing is retained
  • Storywriter and adventure modes, not only chat, which suits long-form writing
  • Reads Tavern character cards, so characters are portable between tools
  • Runs on CPU alone if you have no suitable GPU, with partial offload in between

It removes both the vendor and the assembly. Other local setups need a runner plus a front-end plus configuration between them; this is one file that is all of it. Storywriter and adventure modes make it better than most at long-form writing rather than only chat, and Tavern card support means characters made elsewhere still work.

Limitations

  • Applies no content policy, because the software contains no model of its own
  • Output quality is entirely a property of the GGUF file you chose to load
  • You need hardware capable of running a model, and some judgement about which
  • No support, no warranty and no operator to hold responsible
  • Exposing its API beyond your own machine moves the privacy question onto you

Nothing is enforced and nothing is guaranteed. The software applies no content policy because it has none to apply, quality depends entirely on which model file you picked, and there is no support and no warranty. If you want a product that decides anything for you, this is the opposite of that.

Hands on

KoboldCpp is the answer to a question the rest of this directory cannot address: what if there were no company involved at all.

It is one executable. You download it, point it at a GGUF model file and it opens an interface. There is no installer, no Python environment, no separate backend to configure and no account. The model runs inside the same program you are typing into, on hardware you own, which means nothing is transmitted, nothing is retained, and every question this site normally spends a listing answering is answered by there being nobody on the other end.

What separates it from the other local entries here is the writing side. LM Studio and Ollama are model runners with a chat box. KoboldCpp ships chat, adventure, instruct and storywriter modes, plus memory, world info and author’s note fields, and it reads Tavern character cards so anything you built for another front-end still works. For long-form fiction that is a materially different product from a chat window.

It also serves an API, which makes it the usual backend for SillyTavern. That pairing, KoboldCpp running the model and SillyTavern in front of it, is the standard local roleplay stack and both halves are free.

The trade is total. The software enforces nothing because it has nothing to enforce with: it contains no model, so what a session refuses is a property of the file you loaded. Output quality is your model choice, not the program’s doing. There is no support, no warranty and nobody to complain to. And the API it serves is a door: keeping it on your own machine is the default, and opening it to a network is a decision whose consequences are entirely yours.

How KoboldCpp compares

Every figure on the right is computed across the 37 tools ClickTug currently tracks, at the moment this page was built. They are facts about this catalogue rather than about the market, and they move as it grows.

KoboldCpp compared with the ClickTug catalogue
MeasureKoboldCppAcross ClickTug
Starting priceNot published$11.99 median of 17 that publish one
Publishes a priceYes26 of 37 tracked
Free tierYes30 of 37 tracked
Names its operating companyYes33 of 37 tracked
States a training positionYes18 of 37 tracked

KoboldCpp compared with the alternatives

Every cell is read from the same records as each tool's own listing, so nothing here can claim something its page denies. Rows needing an account to confirm are left out entirely rather than guessed at, and live in each listing's feature matrix instead.

KoboldCpp compared with its alternatives on price, features and disclosure
 KoboldCppSillyTavernLM Studio
Starting priceFreeFreeFree
Free tierYesYesYes
Card to startNoNoNo
Account requiredNoNoNo
Runs on your hardwareYesYesYes
Image generationNoYesNo
Video generationNoNoNo
VoiceNoYesYes
APINoNoYes
Mobile appYesYesNo
Trains on your contentStates noStates noStates no
Account deletionYour own filesYour own filesYour own files
Company namedYesYesYes
Position on minorsN/AN/AN/A
  • SillyTavern

    KoboldCpp vs SillyTavernFree

    Choose SillyTavern instead if you want far richer roleplay tooling, lorebooks and group chats, and do not mind pairing it with a separate backend such as this one.

  • LM Studio

    KoboldCpp vs LM StudioFreemium

    Choose LM Studio instead if you want a graphical model browser and a more guided setup, rather than a single executable you point at a file you found yourself.

Quick answers about KoboldCpp

Generated from the same records as the tables above, so an answer here cannot contradict a figure there. Questions only appear when the answer says something specific to this product.

Is KoboldCpp free?
Yes, the whole product. The whole program. No paid version, no account, no service to subscribe to.
How much does KoboldCpp cost?
Nothing. There is no paid tier, so there is no price to compare.
Does KoboldCpp require a credit card to start?
No, and there is nothing to buy afterwards either. Nothing here is sold, so no payment details are collected at any point.
Does KoboldCpp offer refunds?
Nothing is sold, so no refund terms exist.
Does KoboldCpp have an app?
Yes, on Android, and it installs on Windows, macOS and Linux as well.
Can KoboldCpp run locally?
Yes. In its primary mode it runs models on your own hardware, so prompts and output stay on the machine and no vendor retention period applies to them.
Does KoboldCpp train on my conversations?
Nothing is transmitted in the local mode, so there is no user content for anyone to train on. That is a property of where the model runs rather than a promise that could be changed.
What happens to my KoboldCpp data?
There is no account and no vendor-held copy, so deleting means removing the files on your own device. Nothing has to be requested from anybody.
Is KoboldCpp actually uncensored?
ClickTug records no documented output filter, which is a different claim from having no rules: its terms still prohibit a specific list of conduct, set out above.
What company owns KoboldCpp, and where?
KoboldCpp project, maintained by LostRuins, Not applicable, open-source project. Publishing an identifiable counterparty is worth noting: several tools in this directory name no company at all.

KoboldCpp FAQ

Is KoboldCpp free?

Yes, entirely. The llama.cpp and GGML libraries it is built on are MIT licensed, and KoboldAI Lite, the interface it ships with, is AGPL-3.0. There is no paid edition, no subscription and no account. Models are downloaded separately and the widely used ones are free as well.

Does KoboldCpp need a GPU?

No. It runs on CPU alone, on GPU, or with some layers offloaded to a GPU and the rest on CPU, which is what makes it usable on ordinary machines. It also ships compatibility flags for older processors. A GPU makes generation faster rather than possible.

Is KoboldCpp uncensored?

The program applies no filter, because it contains no model. Whether a session refuses anything depends entirely on the GGUF file you loaded: some models are heavily aligned and some are not, and that choice is yours. It is a more honest answer than a hosted product can give, and it puts the responsibility for what is generated on you.

What is the difference between KoboldCpp and SillyTavern?

KoboldCpp runs the model and gives you an interface, in one executable. SillyTavern is only an interface and needs a backend, which can be KoboldCpp. If you want the simplest possible local setup, use KoboldCpp alone. If you want lorebooks, group chats and deeper roleplay tooling, run KoboldCpp as the backend and SillyTavern in front of it.

Does KoboldCpp send my writing anywhere?

No. The model runs inside the same program on your own machine, so prompts and output stay local. There is no vendor, no telemetry requirement and no account. The exception is deliberate: it can serve an API, and if you expose that to a network you have made a choice with consequences you own.

Can I use my existing character cards with KoboldCpp?

Yes. It loads Tavern character cards, so characters built for SillyTavern or other front-ends in that lineage will work here. It also provides memory, world info and author's note fields for steering a long session, which is the same vocabulary those tools use.

How we checked KoboldCpp

Checked
10 August 2026
Documents read
1
Claims checked
0
Documentation gaps
3

What we did

  • Read every policy document linked from this page, in full
  • Loaded the pricing page, and re-loaded it in a rendering browser where it was empty
  • Checked the homepage against the pricing and policy pages for disagreement
  • Ran the vendor's own homepage through ClickTug's excluded-terms gate
  • Searched for reporting, incident-database entries and independent testing

What we have not done

Everything below needs an account, and ClickTug does not hold one here. These are recorded as not tested rather than guessed at, which is why they are absent from the tables above rather than marked "no".

  • Signup completed
  • Email verification required
  • Card required at signup
  • First response generated
  • Long-term memory
  • Voice feature
  • Character creation
  • Delete-account control
  • Chat export
  • Cancellation flow

Verified ClickTug observed this directly on the vendor's own pages.Documented The vendor states this in a document we have linked.Not documented We read the document that would carry this and it is absent.Not tested Checking this needs an account. We have not held one, so we have not checked.

Sources for this listing

ClickTug last checked these facts on 10 Aug 2026 against 1 vendor source. Pricing and data policies in this category change within weeks, so treat the date as part of the fact.

Something wrong or out of date? Report this listing. If this listing concerns you personally, use our removal request form.

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