Converloop Local-first AI language tutor · macOS & Windows
An AI tutor that talks with you, corrects the sentence you just wrote, and remembers every gap — so your next conversation already knows where you're weak.
Free & open source · AGPL-3.0 · bring your own keys · nothing leaves your device
How did the demo go?
have fix→fixed
Simple past for a finished action — “fixed”, not “have fix”.
Nice work — did QA sign off before you shipped it?
What it is
Converloop isn't a general-purpose chatbot with a learning skin. It starts from conversation and turns every exchange into precise learning — a chat partner built for language learning, and an AI-native learning app at the same time.
Chatting with it is the lesson. Corrections land on the sentence you just wrote, replies come bilingual or fully explained, any text is explained the moment you select it, and when you're stuck the input box suggests how to keep going — all the help lives inside the conversation, never interrupting it.
It remembers you. Every slip, every win, every expression gap is recorded precisely — a real picture of where you're weak — and due items quietly weave back into your conversations and drills. The more you talk, the better it knows you.
Under the hood
Two agents run on every sentence — one keeps the conversation natural and hands you help the moment you're stuck, the other grades and explains in the background. What they find becomes one learning memory, reused across your conversations, reviews, and every practice mode.
↺ and the loop repeats — each turn a little sharper
In the conversation
The helpers live right where you already are — the line you type in, the replies you read, and any text on the screen.
Only half-get a reply? Turn on Bilingual reading and each sentence keeps its original text with your native translation tucked underneath — auto-open it on every turn, or toggle it per reply. Or tap Explain for a breakdown pitched to what you’ve already mastered. Both live on the reply itself — never a separate tab.
Highlight a word or phrase anywhere in the app and a small island floats up: Analyze, Read aloud, or Add to your learning data. Analyze tells you why the phrase works — the nuance, and how you'd reuse it — then one click saves it to memory for review.
Did QA sign off before we shipped the fix?
A phrasal verb for giving formal approval — here QA “signs off,” i.e. officially OKs the release before it goes out. Stronger than just “agree.” Reuse it: “Can you sign off on this?”
The hard part of a new language is often your turn — when you don't know what to say. Converloop puts the help right where you type: when you need it, it hands you an editable draft, shows the natural way to say what you mean, offers a few words to work with, or asks your partner to slow down. You're never staring at an empty box.
Practice modes
Conversation is just the start. Each mode below feeds the same learning memory — so listening, dictation, spin-off chats, and drills all reinforce the exact gaps your conversations turned up.
from 2 conversations · 14 lines
Every chat becomes listening material. The AI's replies and the polished version of your own lines play back in order — so you train on language you've actually used, not a generic audio deck.
Pick a theme and Converloop reads out sentences one at a time. Type exactly what you hear, then it marks your transcription against the real sentence and explains the gap — no multiple choice, you produce every word.
Can you walk me through the rollback plan?
“walk” → saved to a separate listening memory, woven back into a later sentence.
From this conversation…
Reached a good moment? Branch it. From any point you can spin off a fresh conversation — harder or easier, roles reversed, a new scene, or picked up again the next day. The original stays right where it was.
Open the Practice Center and pick a drill — scenario practice, dictation, or a weak-spot quickfire. Each one builds a session around what's due for review. Or write your own and export it as a single file.
Practice Center
Local-first & open
The conversation is the star — but everything around it is built to stay private, inspectable, and yours.
No separate report to decode. The wrong span is struck through and the fix sits right beside it, with grammar details and natural rewrites one tap away.
Every slip, win, and gap becomes a signal in local memory, so due reviews resurface inside your next conversation.
Stuck mid-sentence? Type in your own language and get the natural target-language phrasing — explained, not just translated.
See every capability the AI runs, switch any on or off, nudge it with your own instructions, or build a new one — and share it as a single file.
OpenAI-compatible, Anthropic, Gemini, or Claude / ChatGPT subscription login. Runs on macOS and Windows.
No account, no cloud. Your data stays encrypted on device, with one-click readable backups you can move.