Ollama Mock

Ollama Mock is a fake Ollama server that simulates API responses for testing without running local models.

Ollama Mock is a fake Ollama server designed for testing applications without the need to run actual AI models. It uses the same API and runs on the same port, allowing your existing code and the Ollama CLI to work without changes. The server provides deterministic and varied answers in realistic shapes, supporting features like thinking, tool calls, vision, JSON, embeddings, decisions, fill-in-the-middle, model sizes, and token speeds. It runs locally in your browser via WebAssembly or locally on your machine, listening on port 11434. It is built for developers who need to test AI integrations quickly in CI environments or local setups without hardware constraints. The project is open source and available on GitHub.

Ollama Mock at a glance

Best for: Software engineer
Runs on: Web, CLI, self-hosted, open source
Pricing: Free
Released: October 2026
Category: AI coding tool
Website: ollama-mock.kinduff.com

Key features

Simulates the Ollama API
Runs in the browser via WebAssembly
Listens on the standard Ollama port
Provides deterministic and varied answers
Supports tool calls, vision, and JSON
Includes support for embeddings and fill-in-the-middle
Zero GPU or model download requirements

Use it for

Testing AI applications without local models
Running automated tests in CI environments
Developing applications offline without a GPU
Validating API requests and responses

Companions

Tools that articles about Ollama Mock recommend using with it, each with its job.

Ollama — Built to work with Ollama.
Open WebUI — Run AI on your own terms with complete data privacy and self-hosting control.
AnythingLLM — Runs fully on-device with no accounts, API keys, or token limits required.
LangChain — Framework for custom agents with memory and tools on local models.
Chroma — Local vector database for embeddings and semantic search.
Cline — Open source, any model, with approval on every step

Alternatives to Ollama Mock

Ollaya — Run decision models locally with typed, calibrated answers in milliseconds.
LLM Test Server — Script responses, streaming, and tool calls while inspecting every request.
AirLLM — Runs massive 70B+ parameter models on small 4GB consumer GPUs.
llmrun — Check which open models run on your specific GPU or Mac instantly.
whichllm — Ranks models using real benchmarks and hardware fit instead of parameter count.
LMDeploy — Accelerates inference with high-performance engines and quantization tools.
WebLLM — Runs high-performance language models directly inside web browsers.
RunThisLLM — Provides exact hardware and VRAM requirements for over 295 local AI models.
VulnClaw — It uses LLM agents to autonomously execute end-to-end security testing loops.
oMLX — It uses paged SSD KV caching to reduce agent TTFT to under 5 seconds.
Llama Windows — It runs open models offline with zero configuration.
llama-swap — It runs multiple local AI models with zero external dependencies.

All Ollama Mock alternatives