[ Closed beta launch: ]91 seats remaining

Your AI dev team.
On your machine. Under your control.

  • Pixel
  • Loop
  • Byte
  • Patch

Jennefer is a desktop app where specialist AI agents plan, write, and review your code on local models. Nothing ships until you approve it.

  • Local modelsRuns on your machine. Your code never leaves it.

  • Specialist agentsA planner, a coder, and a reviewer working as one team.

  • You decideEvery change waits for your approval.

Build a login page for my app. Email and password, nothing fancy.

No changes yet.

Agents propose. You decide.

  1. 01You describe it
  2. 02Agents build it
  3. 03You approve it
01 / The workspace

What is Jennefer

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02 / The intelligence

Agent Choosing System

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Agent routing

The right agent
for each task.

Select a task to see which specialist handles it and why.

Choose a task

Implement the new OAuth2 login flow in the backend

Matching task to expertise...
03 / The foundation

Ecosystem & Security

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Atlassian logo

Atlassian

Atlassian for Startups

Selected for the official startup program.

MongoDB logo

MongoDB

MongoDB for Startups

Accepted into the official startup program, powering agent telemetry, scalable context storage, and vector memory.

Amazon Web Services logo

Amazon Web Services

AWS Activate

Cloud infrastructure, scalable multi-agent compute, and foundation models powered by Amazon Bedrock.

Microsoft for Startups logo

Microsoft for Startups

Founders Hub

Enterprise Azure compute infrastructure and high-throughput Azure OpenAI Service access.

E2B logo

E2B

E2B for Startups

Secure cloud sandboxes for isolated agent code execution, testing, and development workflows.

Auth0 by Okta logo

Auth0 by Okta

B2B Professional Tier

Enterprise identity infrastructure, multi-tenant B2B access, and autonomous AI agent security.

PostHog logo

PostHog

Scale Startup Cohort

Full product telemetry, user session recordings, and feature flag management at scale.

Neo4j logo

Neo4j

Aura Startup Partner

Graph database engine driving AST parsing, dependency mapping, and persistent agent memory.

Sentry logo

Sentry

Developer Infrastructure Grant

Real-time error tracking, crash reporting, and system health monitoring across all runtimes.

Notion logo

Notion

Notion for Startups

Business-tier centralized workspace, technical documentation, and ecosystem architecture.

Deepgram logo

Deepgram

Deepgram for Startups

Ultra-low latency speech-to-text, text-to-speech, and voice agent infrastructure.

Mixpanel logo

Mixpanel

Mixpanel for Startups

Event-based product analytics, session replay, and feature flag management for tracking agent performance.

BoldDesk logo

BoldDesk

BoldDesk for Startups

Enterprise customer support, multi-channel ticketing, and AI-powered live chat integration.

Customer.io logo

Customer.io

Customer.io for Startups

Automated messaging, behavioral segmentation, and multi-channel developer onboarding workflows.

PARTNER WITH US

Ecosystem Access

Building developer infrastructure or tooling? Integrate your stack directly into Jennefer.

Get in touch →
04 / The workflow

Features & Benefits

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04 / Features & benefits

Built around control.

Four things that change once your agents run on your own machine.

01 / Living loop

A loop that thinks for you.

Describe the outcome. Specialist agents plan, design, build and test it, then a consensus gate approves the result before it reaches you.

  • Role-based handoffs you can inspect
  • Consensus gate before delivery
  • Runs on the Living Org DAG
Living loopRunning
  1. Youcreate a wonderful project
  2. UX DesignerDesign system spec
  3. CoderImplementation
  4. QA TesterTests synthesized
  5. DevOpsLocal runtime
  6. CEOConsensus approved
Delivered to youRendered locally

02 / Zero per-token cost

No more token counting.

Run unbounded agent swarms on Ollama, LM Studio or llama.cpp. No cloud rates, no rate limits, no surprise bills.

  • Bring any local runtime
  • No usage caps or outages
  • Hosted credits only when you choose them
Token meterLocal
Cloud APIMetered

0

Every request is billed.

Jennefer + local modelUnmetered

0

Generating on your hardware. No meter.

03 / Offline-first

Turn the Wi-Fi off. Not the coding.

Local models keep working when the network goes away. Zero cost, unlimited generations, nothing waiting on a connection.

  • Full agent workflows without a network
  • Models stay on your device
  • Same workspace online or off
Quick settingsOnline

Wi-Fi

Connected to studio network

Models on this device

  • OllamaReady
  • LM StudioReady
  • llama.cppReady

agent > idle

04 / Private by design

100% privacy. Zero leaks.

Your code and ideas never touch remote servers. Loopback isolation blocks remote context indexing and model-training leaks.

  • Zero telemetry
  • Loopback-only agent traffic
  • The boundary stays yours
Trust boundarySealed
Your machineOutside
Codebase
Cloud LLM
Models
Telemetry
Agents
Remote indexing
0
bytes uploaded
0
telemetry events
100%
on-device
05 / The team

Autonomous Engineering Squad

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01

Supervisor

Autonomous Orchestration

Task decomposition, dependency scheduling & agent consensus.

02

Architect

Requirements & ADRs

Translates high-level prompts into deterministic tech specs.

03

Developer

AST Refactoring & Codegen

Context-aware implementation and AST code mutations.

04

QA Tester

Test Suite Synthesis

Generates edge cases, fuzzing and unit test matrices.

05

Reviewer

Consensus Gate

Enforces code standards, security audits & PR diff approval.

06

DevOps

Sandboxed Execution

Local runtime isolation, dependency builds & migrations.

07

UI Designer

Component Styling

Tailwind tokens, CSS variables & design system sync.

08

Dispatcher

DAG Execution

Directs parallel execution threads across available models.

Field note / The squad, in person

Every specialist has a face.

Meet Pixel, Loop, Byte, and Patch, the Nefers. They plan, build, and review inside Jennefer, and they have opinions about all of it.

  • pixel CEO · UX
  • loop Planner
  • byte Coder
  • patch Reviewer
Meet the Nefers
06 / The essentials

In Short

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06 / The essentials

All the capability.
None of the compromise.

A private development environment designed around real engineering work.

ZERO PER-TOKEN COST

100% Offline Local Swarms

Execute unbounded autonomous agent swarms running on your hardware with Ollama, LM Studio, or llama.cpp. No cloud rates, no monthly surprise bills.

01 / Architecture
ZERO TELEMETRY

Air-Gapped Privacy by Design

Your IP and proprietary codebase never touch remote servers. Hardware-enforced loopback isolation prevents model training leaks and remote context indexing.

02 / Architecture
AUTONOMOUS DAG

Visual Agent Flow Engine

Compose, orchestrate, and debug complex multi-role workflows visually. Drag-and-drop triggers, consensus gates, and automated test loops.

03 / Architecture
ORGANIZATIONAL AGENTS

Living Org Autonomous Pipeline

Supervisors delegate to Architects, Developers, and QA engineers simultaneously. Each role handles specialized scopes with verifiable handoffs.

04 / Architecture
07 / The people behind itIndependent by design

Made by engineers who want a better way to build.

Jennefer began with a simple conviction: powerful development tools should give teams more control over their work, their infrastructure, and their ideas.

Ahmet Enes Keçeci

Founder & lead architect

Ahmet Enes Keçeci

Mathematical engineer and systems developer focused on local AI and autonomous software workflows.

08 / Join the preview

Early Access

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08 / Private preview

Build with
control.
Start here.

Tell us about your team. We will be in touch when access opens.

  1. 01RequestTell us what you are building.
  2. 02ReviewWe read every request by hand.
  3. 03InviteAccess opens in small waves.
Jennefer / Early accessOpen