The exact SQL before every change, all in one transaction: if one fails, nothing changes.
Database from an address
Paste postgres://… (even a line of a .env file) and the form fills itself. From the database menu, “Copy URL” does the opposite.
Kweris
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Safety
The database client
your Mac was waiting for.
It starts from your servers: for each one, its databases, SFTP accesses, monitoring and terminal, in one Mac app. Write and run queries, explore and edit tables, update the structure, import and export data; direct databases, without SSH, are grouped by engine.
How Kweris protects your data →
Download for Mac
Version 1.0.615 · October 22, 2026 · macOS 26, Apple silicon
The features are the real ones; in the app they wear the native look of macOS.
First of all, your data
No change reaches your database unless you’ve seen it: in one transaction, one row at a time, and undoable.
A statement that would touch zero rows or more than one rolls everything back. Production locked until you unlock it.
A Change Log with Undo, and safety copies before a whole table changes.
Supported databases
Server
PgPostgreSQL
MyMySQL
MaMariaDB
MsSQL Server
RdRedis
MgMongoDB
CrCockroachDB
RsRedshift
ChClickHouse
CaCassandra
File
SqSQLite
DkDuckDB
Cloud
LslibSQL
D1Cloudflare D1
SfSnowflakePro
BqBigQueryPro
New in Kweris
Ten more engines, Live Dashboard, relations drawn by hand and an assistant that works on your Mac. Each card is the real feature, in miniature.
Live Dashboard
Panels made of queries: a counter, bars, lines or a table. They refresh on their own, on a connection of their own.
Design relationsPro
Your tables on a canvas: drag from one to another and Kweris writes the foreign keys, showing them before it applies them.
SQL assistantPro
Ask in words and get the query. The server checks it with EXPLAIN before you see it; it explains queries and errors too.
Edit query results
Even a JOIN’s result can be edited cell by cell, when its columns come from a table with a key. Review, then apply.
Sharing
Send a database to colleagues with a .kweris file. With Pro, through iCloud too: you change it and it stays up to date for everyone.
And also
:name parameters in queries
Side-by-side tabs
TLS client certificates
kweris:// links and the kweris command
Quick connectionPro
SQLite and DuckDB files by double-click
Free forever, Pro just once
Free
14 engines, up to 5 databases and 5 servers, editor, Live Dashboard, terminal and SFTP.
0 €Pro
No limits, with monitoring, iCloud, relations, the assistant, Snowflake and BigQuery.
€29 once, 2 MacsYour data stays yours
Kweris doesn’t collect or send any data: databases, servers, queries and settings stay on your Mac, passwords in the Keychain. If you turn on iCloud sync, they also go to your iCloud, on Apple’s servers. The assistant works on your Mac, with Apple Intelligence, Ollama or a downloaded model: neither data nor queries leave it. The app connects only to the servers you set up and to kweris.app for updates and the Pro license.
In English and Italian
Kweris follows your Mac’s language: Italian on a Mac set to Italian, English everywhere else. Just like this page, which picks your browser’s language.
Write to us
Reports, ideas and feedback to [email protected]. In the app, Settings → About prepares the message with the Kweris and macOS versions.