Founding price · first 200 Pro seats · $19/mo (then $29)

A team of AI builders. Not one chatbot.

Most AI tools give you one assistant in a chat box. Tendril gives you a whole crew. Describe what you want, and several AI workers get to work side by side on a board you can watch, each in its own safe workspace so they never trip over each other. It also carries what it learned on your last project into your next one, so it keeps getting better the more you build.

Download free, no cardSee the 120-run study
Runs on your own computer No code trackingWorks with Claude, GPT, or Gemini
Sped up 3.5× · real board, real AI workers
Four AI workers building the same app at the same time. Each card is one job with its own goal. Before anything is marked done, Tendril reviews the work and fixes the issues it can.
120-run study · every number is public

On the hard stuff, Tendril scored 8× higher than a single AI working alone.

We tested an easy task, a medium task, and a hard one across 120 runs. On the easy and medium tasks, a lone AI and Tendril came out close. On the hard one, the lone AI scored 10 out of 100. Tendril scored 80. That is not a typo. Averaged across all three tasks, Tendril's quality came out about 47% higher — but the average hides the real story: the harder the task, the bigger the gap, all the way up to 8x on the hardest one. A team that checks its own work beats one model guessing in one pass.

8×
how much better Tendril did on the hard task
80 / 10
Tendril vs a single AI, same hard task
120
total runs, every number public
See every number from the study →

What makes Tendril, Tendril.

Most AI coding tools drop some code and leave you jumping between a dozen windows while the AI asks you to approve something every thirty seconds. Tendril replaces all of that with one place that actually finishes the job.

It remembers every project
This is the big one. Tendril keeps the decisions, habits, and patterns from everything you have built and brings them into whatever you are building now. You never have to re-explain how you like things done. Your fifth project starts smarter than your first.
A team, working in parallel
Instead of one AI taking one step at a time, Tendril puts several AI workers on a board and lets them build different parts at once. Each one works in its own safe workspace, so they finish faster and never clash.
It checks its own work
Before anything is called done, Tendril reviews what was built and fixes the issues it can, the way a careful teammate would. You get something that actually works, not a first draft to debug.
See it live, point at what is off
Your app runs right inside Tendril. Circle whatever looks wrong, type one sentence, and it turns into a fix on the board. The fastest path from “that looks off” to “that is fixed.”
One-click improvements
When a project finishes, Tendril hands you a short list of smart next steps. Click one and an AI worker does it. No copy-paste, no re-explaining.
Your code stays yours
Everything lives on your own computer. Your code is never tracked, and your activity log stays on your machine. The only thing that ever leaves is what the AI you chose needs to see to do its work, sent straight to that provider. We do count overall token usage on your account to enforce your plan limits and prevent abuse, but never your code. Connect GitHub when you want to save and share, all from the same board.
The AI you already like
Use Claude, GPT, or Gemini. Already pay for Claude Pro or Max? Just sign in and use it, no extra key needed. Prefer your own key? Bring it.
Safe by default
Every AI worker runs in a locked sandbox. Genuinely risky moves, like deleting things or touching files it should not, are blocked automatically, and nothing is saved to your project until you approve it. You are always the one who says yes.

Three speeds for three sizes of job. You pick, or let Tendril pick for you.

A quick tweak and a brand-new feature should not take the same amount of work. Tendril matches the effort to the job automatically, or you can choose.

Simple
Just do it.

A quick fix or a small change. Tendril makes the edit right away, no fuss. It shows up on your board so you can look it over and keep it.

Medium
Plan, build, check, repeat.

A new feature or a round of polish. Tendril shows you a plan you can tweak, builds it, checks its own work, and tries again until it is right.

Complex
All hands on deck.

A big build with lots of moving parts. After you approve the plan, a team of AI workers builds in parallel, shares what they learn with each other, and a senior reviewer signs off before anything is saved. This is the mode that scored 80 out of 100 — versus 10 for a single AI.

Ready to build something?

Start free, no credit card. The free plan gives you 100,000 tokens a day and 1 million a month, plenty to build real things. Want more room? Starter is $12/mo and Pro founding pricing is $19/mo for the first 200 seats. Nearly every feature is the same on every plan, with one exception: bringing an existing project you made elsewhere into Tendril is a Starter or Pro feature. On Free you create new projects from scratch. Apart from that, the only thing that changes between plans is how much you can build each month.

Download free — no card See the 120-run study →

Windows now · Mac & Linux coming soon · Runs on your own computer, your code stays yours