The interval AWR can't see.
1-second ASH, no agent on the server, up to a year of history on your laptop. Live now and any past moment, on the same screens.
- Agentless: JDBC with a read-only user
- Oracle 12c to 23ai · PostgreSQL 12 to 16
- Your data stays on your machine, encrypted
30-day trial, no credit card. Windows and Linux.
Oracle & PostgreSQL

Monitoring Features
Everything you need for complete database observability
Command center with a real-time 360° view: DB Time, active sessions, I/O, capacity headroom, and a ghost line that compares the window with yesterday or last week.

Time travel, on every screen
The recorder was rebuilt from the ground up, and the screens learned to answer for the past.
A flight recorder for every connection
Every open connection is recorded whichever screen is in front: vitals, top SQL and sessions by the minute, capacity, memory, and an hourly health check. Raw for a day, by the minute for a month, by the hour for as long as you keep it. Settings shows what the history holds per grain and per connection, with a switch and a delete for each.
One time bar for the past
Drag, click, wheel, presets, typed dates, arrow keys and Escape. Gaps are drawn as gaps, with the reason the recorder wrote at the time: disconnected, application closed, slow database, recording off.
Compare, annotate, export
A ghost series for the same window yesterday or last week, notes pinned to the timeline, and the whole window exported as CSV.
Every screen answers for the window
Jobs read the scheduler log, the error monitor reads the alert log, SQL Analysis shows the top SQL of the window, Health shows a day-by-day strip. Each panel says in words which part is still live.
Sessions with the whole story
Client address, database node, service, transaction, open cursors and wait history in a detail view organised around who, from where, doing what. All Sessions and Process Map now speak the same language.
Security you can act on
A Security menu built for use: user signals, privilege detail exported to CSV, an application password that seals connection secrets with no recovery path, and a history file encrypted at rest.
Retention is a setting: the hourly grain keeps 365 days by default and can be raised. SQL text is never recorded unless you switch it on.
Simplify your database management
Specialized tools for every aspect of database administration.
Intelligent SQL query optimization
Analyze, optimize and monitor your SQL queries with automatic index recommendations and execution plans.
3 screenshots




Ready to see every second of your database?
30-day trial, no credit card. See what the 15-minute snapshot is hiding.
Start free trialWhy DBAs choose LAB256
Features that make a difference in day-to-day database administration.
While AWR captures snapshots every 15 minutes, LAB256 records every second of database activity.
1-Second ResolutionA flight recorder writes every open connection into an encrypted local history at four grains. Drag the time bar to any moment and the Dashboard, Performance Hub, Sessions, Locks, Storage, Memory, Health, Jobs, errors and SQL answer for that window.
Up to a year of time travel
A JDBC connection with a read-only user. Nothing installed on the database server; the queries are light and the collection interval is yours to set.
Low impact, no agentCreate custom SQL monitors with automatic alerts. Use the template library or write your own queries.
Customizable Alerts
Native support for multi-instance RAC environments and Data Guard standby monitoring.
Oracle RAC & Data GuardFull monitoring for PostgreSQL 12 to 16 with session analysis, query performance, locks and storage metrics.
PostgreSQL Support
Where LAB256 fits with what you already have
It does not replace OEM or AWR. It covers the interval between snapshots and keeps what they discard.
| Feature | LAB256 | AWR / OEM |
|---|---|---|
| History grain | 1 s for a day, 1 min for a month, 1 h for up to a year | 15-minute snapshots; ASH at 10 s for 8 days, by default |
| Agent on the server | None: JDBC with a read-only user | OEM Agent installed on every host |
| Where the data lives | On your computer, encrypted | Central repository |
| PostgreSQL | Yes, 12 to 16 | No |
| Going back in time | One time bar, every screen | Reports by period |
| Licensing | Per DBA machine, in dollars, no per-database charge | Diagnostics Pack per processor |
V$ACTIVE_SESSION_HISTORY and DBA_HIST_* views require the Oracle Diagnostics Pack on the monitored database. LAB256 checks on connection whether the pack is available and flags on screen when a panel depends on it.
Get Started in Minutes
Download, install, activate with your e-mail. Nothing on the database server.
Download
Installer for Windows or Linux. Nothing is asked before the download.
Install
Run the installer. About 150 MB, ready in minutes.
Activate and connect
Request the trial key with your e-mail: it arrives instantly, no credit card. Set up the connection with a read-only user.
Explore
Watch now live, and drag the time bar into the past.
Plans and Pricing
Licensed per machine, unlimited connections, 30-day trial with no credit card. Prices in US dollars; card or PayPal.
Trial
30 days with everything on, no credit card
Free
30 days · 1 machine
- Every feature for 30 days
- Unlimited Oracle and PostgreSQL connections
- 1 machine
- Encrypted local history
- Key by e-mail, instantly
Professional
For the DBA who runs production
US$ 199
per year · 1 machine
- Unlimited Oracle and PostgreSQL connections
- 1 machine
- 1-second ASH and time travel
- Up to 1 year of local history, configurable
- Updates included while active
- E-mail support within 1 business day
15-day money-back guarantee on all paid plans
BuyEnterprise
For teams and critical environments
US$ 249
3-year licence · 5 machines
- Everything in Professional
- Up to 5 machines
- Priority 8x5 support
- Offline activation for isolated networks
- Quote for more machines
15-day money-back guarantee on all paid plans
BuyDownload
Windows and Linux. Download first; the trial key comes by e-mail whenever you want it.

Frequently asked questions
If you can't find what you're looking for, email our support team and we'll get back to you shortly.
Which database versions are supported?
LAB256 supports Oracle Database 12c, 18c, 19c, 21c and 23ai (including RAC and Data Guard), as well as PostgreSQL 12, 13, 14, 15 and 16.
Do I need to install anything on the database server?
No. LAB256 is 100% agentless: it connects over JDBC directly to your Oracle or PostgreSQL database with a read-only user. The impact on the server is a few light queries against the performance views, at the interval you choose.
How does the trial period work?
The trial offers 30 days with all features enabled and unlimited connections. No credit card required.
What PostgreSQL features are supported?
LAB256 provides real-time monitoring for PostgreSQL including active sessions, query performance via pg_stat_statements, lock analysis, storage usage and custom alerts — all with the same 1-second resolution.
What privileges are required?
For Oracle, LAB256 needs SELECT on V$ views and DBA_* views. For PostgreSQL, it requires access to pg_stat views. We recommend creating a dedicated read-only user.
Where is data stored?
All data is stored locally on your computer, in a history file encrypted at rest. SQL text is only kept if you switch it on. No data leaves your network.
Does it work with cloud databases?
Yes. LAB256 works with Oracle and PostgreSQL in any environment: on-premises, Oracle Cloud, AWS RDS, Azure Database, Google Cloud SQL and other managed services.
How does it compare to Oracle Enterprise Manager?
LAB256 complements OEM: 1-second resolution between the 15-minute AWR snapshots, a local history you can scrub through on every screen, and nothing installed on the server. It also monitors PostgreSQL, which OEM does not. The comparison table sits just above the pricing.
Does it support monitoring multiple databases?
Yes. Every plan, the trial included, monitors multiple Oracle and PostgreSQL connections at the same time, with quick switching between instances. The licence is per machine running LAB256, not per database.
What about technical support?
E-mail support in Portuguese, English and Spanish, on business days from 9:00 to 18:00 (Brasília), answered within one business day. The Enterprise plan gets priority in the queue (8x5).