Changelog 2026.06

Import JMeter, k6 & Locust Scripts

If you have existing load test scripts from other tools, you can now import them into Loadster! The new script importer accepts JMeter test plans (.jmx), k6 scripts (.js), and Locust files (.py), and converts them into Loadster protocol scripts.

The importers translate requests, headers, extraction rules, assertions, and other common elements as faithfully as possible. Since each tool has its own concepts that don’t always map one-to-one, the importer also gives you a report of anything it couldn’t translate, so you know exactly what to touch up by hand instead of finding out mid-test.

You’ll find the importer on your project’s Scripts tab.

JSONPath & XPath Capturing Rules

Protocol scripts have two new capturing rule types:

• JSONPath – capture a value from a JSON response body with an expression like $.user.id.
• XPath – capture a value from an XML response body with an expression like //user/id.

These are often more direct than regular expressions or boundary matching when you’re working with structured response bodies, and they also give imported JMeter and k6 scripts a natural home for their extraction rules.

More Performance Stats Per Bot Group

The bot group (population) table in live tests and test reports has been overhauled to show much more detail per group: hits, errors, iterations, response time percentiles with a sparkline, uploaded and downloaded bytes, and running bots, alongside the script, location, and ramp stage you could already see.

All columns are shown by default, and the table is now properly sortable, with resizable columns and a column picker so you can hide the ones you don’t care about. Chart colors for bot groups are also generated more sensibly, so tests with many groups stay readable.

Include Step Improvements

The Include Step, which lets one script include another, is now much friendlier to work with. The list of scripts refreshes automatically, you can create a new script to include without leaving the editor, and there’s a link to jump straight to the included script — which now always opens in a new tab so you don’t lose your place.

Playwright Artifact Capture Settings

Playwright tracing and video recording make script playback in the editor easier to debug, but they add overhead — especially for large or long-running scripts. There are now two settings to disable tracing and/or video recording during editor playback, so you can turn them off if your scripts run noticeably slower in Loadster than they do locally.

Mobile-Friendly Dashboard

The key pages of the Loadster dashboard — the main dashboard, monitors, incidents, login and registration, and account settings — now scale down properly for phones and small screens. Editing scripts and analyzing test reports are still best on a bigger screen, but checking on a monitor or incident from your phone no longer requires heroic amounts of pinching and zooming.

Other Improvements & Bug Fixes

• The Loadster Recorder browser extension (v29) records with a shared selector engine across browser and Playwright scripts, adds a hover-recording mode for capturing hover interactions, and has draggable overlays restyled to match the dashboard.
• Added an autoformat button to Code Blocks and Evaluate Blocks in the script editor, so you can tidy up your JavaScript with one click.
• The free website speed test got its own landing page, along with fixes for cloud region selection.
• Fixed a bug where waiting for elements inside an iframe could be interrupted by a page navigation in browser scripts.
• Fixed a bug that could let a monitor be saved with a script from a different project, leaving it pointing at a script it couldn’t run.
• Billing now supports Stripe’s modern payment methods, with 3D Secure authentication when you add a card, so automatic renewals are less likely to fail on cards that require it. Previously saved cards work as before, and a couple of card display bugs on the Billing page were fixed along the way.
• After duplicating a script, dataset, or scenario, the dashboard now switches to the matching tab so you can see the new copy right away.
• Upgraded various dependencies, including the dashboard’s build tooling, to patch security vulnerabilities.