New Now reads Cursor CLI and Kiro CLI chats too

Your AI coding chats,

ChatRelay keeps your chats from Claude Code, Codex, Cursor, Kiro and Antigravity on all your devices, rewrites every file path for the new machine, and hands a project's context to the next AI tool. Your storage, no server.

Download for Windows Open the web viewer

Free and open source (MIT) Windows · Android · Web No account, no ChatRelay server

Claude Code

Codex

Antigravity

Cursor

Kiro

‹ ›Home / ChatRelay

Home

Claude Code2

Fix checkout total roundingshopChanged

Invoice PDF totalsinvoice-apiSynced

Codex1

Coupon codes v2shopOn DESKTOP

Cursor1

Landing page polishportfolioChanged

Kiro1

Spec: stacking couponsshop · CLIChanged

Antigravity1

Offline notes syncnotes-appChanged

Auto-syncWorking

$ chatrelay status

Then open it where you left off:

$ claude --resume

$ codex resume

Cursor, Kiro, Antigravity: in ChatRelay

Sync between devices

Start on one device. Pick up on the other.

Every conversation, tool call and changed file goes to storage you own, then to your other devices. Claude Code and Codex chats show up in the tool's own history list, with every path changed to the new machine. Cursor, Kiro and Antigravity chats open in ChatRelay on any device. After the first upload, only the new lines travel.

Path rewrite 166 paths in one session

DESKTOP Windows

C:\Users\me\shop

LAPTOP Windows

D:\work\shop

cwdworking folder

toolstool inputs and outputs

linksfile:/// links, %20 spaces

textpaths inside message text

OSC:\ · c:/ · /c/ · /mnt/c/ · /home/me

chatrelay

# DESKTOP: upload what changed
$ chatrelay push --all
  shop          ↑ 3 sessions  (delta, 41 KB)
  invoice-api   ↑ 1 session   (delta, 6 KB)
  secret scan: 1 key found → redacted in the upload

# LAPTOP: preview first, then write
$ chatrelay pull --dry-run
  shop  →  D:\work\shop   (matched by git remote)
  ×166  C:\Users\me\shop  →  D:\work\shop
  codex 3 threads   (Codex is closed: OK to write)
  cursor, kiro, antigravity 6 chats  (open in ChatRelay)
  nothing written. run without --dry-run to apply

Your second device in four steps

1
Install and pick the same storage. The same synced folder or the same private GitHub repo.
2
Get the project folder. For example with git clone. The path may be different.
3
Bring history to this device. Git projects are matched by their remote. Others you link once.
4
Check the dry run, then confirm. Turn on auto-sync and it happens by itself from then on.

Learn Second device setup Auto-sync Supported AI tools

Summaries and handoff

Start in one tool. Finish in another.

Summarize a project's chats from Claude Code, Codex, Cursor, Kiro and Antigravity into one HANDOFF.md, and put a short version into CLAUDE.md, AGENTS.md or GEMINI.md so the next tool starts with the context. A Codex chat can also become a Claude Code one, or the other way round, with the whole history.

HANDOFF.md from 5 tools · 41 conversations

Project overview

Online shop: Next.js front end, Stripe checkout, PDF invoices.

What's done

Discount rounding fixed in checkout and invoices
Coupon codes can stack

Key decisions

Round once, after tax, in cartTotal()

Open bugs

Refund emails show the pre-discount price

Next steps · Files touched

cart/total.ts, invoice/pdf.ts, emails/refund.tsx

chatrelay

$ chatrelay summarize --target claude-md
  project   shop  (Claude Code 20 · Codex 9 · Cursor 5 · Kiro 3 · Antigravity 4)
  condensed 1.9M → 84k tokens
  hidden    3 secrets · 2 .env values · 1 "never send" word
  model     claude-sonnet-5-5
  ✓ wrote "Previous context" in CLAUDE.md
    (the rest of the file is untouched)

# any OpenRouter model works too
$ chatrelay summarize --model openrouter:<id> --target handoff

Continue in…

Claude Code CLAUDE.md

Codex, Cursor, Kiro AGENTS.md

Antigravity, Gemini CLI GEMINI.md

Secrets never reach the AI

~~sk-ant-api03-•••~~ → [REDACTED:anthropic]
~~ghp_•••~~ → [REDACTED:github]
~~PASSWORD=•••~~ → [REDACTED:password]

Use the Claude Code or Codex login you already have (no API key), the Claude API, or OpenRouter, including free models.

Learn Summaries Continue in another tool Share a conversation

Search and usage

Find any prompt. See where your tokens go.

Search every prompt and answer in every project and every tool in under a second. Usage shows conversations, messages and tokens per day, the models you used, the hours you work, your streaks and your longest conversations. It is worked out on your device; nothing is sent.

When you work busiest: Thu, 2 PM

Current streak

4 days

Longest streak

18 days

chatrelay

$ chatrelay search discount rounding
  shop · Codex · Fix checkout total rounding
    …the discount is rounded before tax…
  invoice-api · Claude Code · Invoice PDF totals
  shop · Cursor · Landing page polish
  shop · Kiro · Spec: stacking coupons
  notes-app · Antigravity · Offline notes sync
  7 matches in 5 conversations (0.2 s)

$ chatrelay usage --days 90
  conversations  612     messages  19,840
  tokens         1.2B    active days  71
  by model, output / input / cache read …

Tokens by model 30 days

Model	Output	Input	Cache read
`claude-opus-5-5`	4.1M	9.8M	310M
`claude-sonnet-5-5`	1.6M	3.2M	74M
`gpt-5.1-codex`	0.9M	2.7M	21M
`claude-haiku-5-5`	0.2M	0.6M	4M

Example numbers. Conversations and messages cover every tool. Token counts come from Claude Code and Codex, because Antigravity, Cursor and Kiro don't record them. Copy report copies it all as Markdown.

Learn Search Usage report

Storage

Your history stays where you put it.

ChatRelay has no server of its own. Pick a folder your devices can all see, or a private GitHub repository. Only compressed copies go there; the history folders of your AI tools never move.

Private GitHub repositoryme/ai-history · private

Sign in with GitHub, no password stored. One commit per upload, big files split automatically, public repos refused. Also powers the web and phone viewer.

a41c9e2shop · 3 sessions · 41 KBjust now

7be02d1invoice-api · 1 session · 6 KB2 min ago

c93f770portfolio · 2 sessions · 12 KB1 h ago

19ad4b8shop · project memory · 2 KB3 h ago

End-to-end encryption Offline queue

Google DriveG:\My Drive\chatrelay

OneDrive%OneDrive%\chatrelay

DropboxAny synced Dropbox folder

NAS or network shareKeeps the previous versions of each file

USB driveCarry your history in your pocket

Any folderIf your devices can see it, it works

Learn Choosing a backend Storage layout Web and phone viewer

Command line

Everything in the app, from the terminal.

The installer puts chatrelay.exe next to the app. It works with every tool, runs the auto-sync hooks, and never fails a session. Use it in scripts, with --json for machine-readable output.

$ chatrelay status
  machine          LAPTOP
  backend          github · me/ai-history  (encrypted)
  last sync        2 minutes ago  ✓
  hooks            SessionStart → pull · SessionEnd → push
  queue            empty
  cleanupPeriodDays 3650

$ chatrelay push --cwd D:\work\shop --redact
  shop  (git:github.com/me/shop)
  ↑ 2 Claude Code sessions   delta · 18 KB
  ↑ 1 Codex thread           delta · 7 KB
  ↑ 1 Cursor chat            1 KB
  ↑ 1 Kiro CLI chat          2 KB
  ↑ 1 Antigravity chat       4 KB
  ! 1 secret redacted in the uploaded copy  (github token)
  ✓ 1 commit to me/ai-history

$ chatrelay providers
  claude-code   2.1.x        format ok     restore on
  codex         0.160        state_5 / 58  restore on
  antigravity   2.6.0        IDE + CLI     view, search, sync
  cursor        3.28.7       editor + CLI  view, search, sync
  kiro          1.4.86       editor + CLI  view, search, sync

$ chatrelay hooks install
  backup  ~/.chatrelay/backups/…-settings
  + SessionStart  chatrelay pull --hook --quiet
  + SessionEnd    chatrelay push --hook --quiet
  ✓ your other settings and hooks are kept

$ chatrelay backups
  20261105-104211-pull-shop        14 files
  20261104-181502-settings          1 file
$ chatrelay backups restore 20261105-104211-pull-shop
  ✓ 14 files put back exactly as they were

Learn CLI reference Auto-sync hooks Adapter guide

Safety and privacy

We worry about your history, so you don't have to.

Your originals are never changed on upload. Every write is backed up first and shown as a dry run. If a conversation changed on both devices, you keep both. If ChatRelay sees a tool format it doesn't know, it turns writing off instead of guessing.

Protected

0 checks passed since you opened this page

Handled for you Live demo

Safeguards Built in

End-to-end encryption
Secrets in the OS keychain
Logins never touched
Private repos only
No ChatRelay server
Never-send list

Learn Safety and privacy Files it reads and writes Backups

Supported AI tools

One history for all your tools.

Each tool is an adapter that checks the format it finds on your device. Unknown versions are still shown, but writing is turned off with a clear reason.

Tool	View and search	Sync between devices	Summarize	Open your chats in	Context file
Claude Code Terminal CLI, VS Code extension	✓	✓ automatic, on session start and end	✓	`claude --resume`, VS Code history	`CLAUDE.md`
OpenAI Codex CLI, VS Code extension, desktop app	✓	✓ automatic, a minute after a chat goes quiet	✓	`codex resume`, Codex sidebar	`AGENTS.md`
Antigravity Antigravity IDE, Antigravity CLI	✓	✓ to every device	✓	ChatRelay on desktop, web and phone	`GEMINI.md`
Cursor Cursor editor (Agent chat), Cursor CLI	✓	✓ to every device	✓	ChatRelay on desktop, web and phone	`AGENTS.md`
Kiro Kiro editor (agent chat), Kiro CLI	✓	✓ to every device	✓	ChatRelay on desktop, web and phone	`AGENTS.md`

Verified with Claude Code 2.1, Codex 0.160, Antigravity 2.6, Cursor 3.28 with its CLI, and Kiro 1.4 with Kiro CLI 3.1. Summaries can also be written for Gemini CLI as GEMINI.md.

KBnot MB

After the first upload, only the new lines of a conversation travel: a few KB instead of the whole file.

How push works

<1second

to search about 2 GB of history: every prompt and answer, in every project and every tool.

How search works

0servers

Your chats go between your devices and your own folder or private repo. Nobody else holds them.

Safety and privacy

Getting started

Set up once, in a few minutes.

Install

Run the installer. A setup wizard finds the history of your AI tools and shows how many conversations each one has.

Choose storage

A synced folder or a private GitHub repo. Name the machine and turn on auto-sync.

Add your other device

Install, choose the same storage and bring history in. From then on it syncs by itself when sessions start and end.

Download

Desktop, phone and browser.

You only install once. New versions arrive by themselves; the app only accepts updates signed with the project's key.

Windows

The full app: sync, auto-sync, search, usage, summaries and the CLI. Lives in the system tray.

ChatRelay_x64-setup.exe Download

Android

Read every conversation from your GitHub storage on your phone. A read-only viewer.

ChatRelay.apk Get the APK

Web viewer

The same Rust engine in WebAssembly. Talks only to api.github.com and loads no third-party scripts.

abh1shxkk.github.io/chatrelay-web Open

macOS and Linux beta

Built by GitHub Actions as .dmg, .AppImage and .deb. Not code-signed and lightly tested.

.github/workflows/desktop-mac-linux.yml All releases

The Windows installer isn't code-signed yet. If SmartScreen says "Windows protected your PC", click More info → Run anyway.

FAQ

Questions, answered.

Something else? Check the troubleshooting guide or send an email.

Which AI tools does it work with?

Claude Code, Codex, Cursor, Kiro and Antigravity, in the editor and in the terminal. Every chat can be viewed, searched, summarized and synced. Claude Code and Codex chats can also be restored into the tool on your other device; Cursor, Kiro and Antigravity chats open in ChatRelay on desktop, web and phone.

Can syncing log me out of my AI tools?

No. ChatRelay only works with your chat history. It never reads, copies or changes the login files of Claude Code, Codex, Cursor, Kiro or Antigravity. If you get logged out, it comes from the tool itself.

What if I continued the same chat on both devices?

Nothing is overwritten. Your copy stays as it is and the other version is saved as a new conversation, for example "… (from DESKTOP)". Both then appear in the tool and sync to your other devices.

My old Claude Code conversations disappeared.

Claude Code deletes conversations older than cleanupPeriodDays (30 by default). ChatRelay can raise it for you, and anything already uploaded can be pulled back from your storage.

Why was a Codex conversation skipped?

ChatRelay never writes to Codex's files while Codex is running. Close the Codex CLI, VS Code panel and desktop app and pull again, or let background sync retry by itself.

Is my code sent to an AI when I make a summary?

Only when you ask for a summary, and only after you confirm. Keys, tokens, passwords, .env values and your "never send" list are hidden first. For client code, use a model whose provider doesn't keep data.

Your AI coding chats,on every device.

Start on one device. Pick up on the other.

Start in one tool. Finish in another.

Project overview

What's done

Key decisions

Open bugs

Next steps · Files touched

Find any prompt. See where your tokens go.

Your history stays where you put it.

Everything in the app, from the terminal.

We worry about your history, so you don't have to.

One history for all your tools.

Set up once, in a few minutes.

Install

Choose storage

Add your other device

Desktop, phone and browser.

Windows

Android

Web viewer

macOS and Linux beta

Questions, answered.

Your AI coding chats,