k6 Cloud - Managed load testing service built on top of the popular open-source project k6.
Crowdin - Localize your product in a seamless way
OctoPerf - OctoPerf is a SaaS load testing solution, based on JMeter.
POEditor - The translation and localization management platform that's easy to use *and* affordable!
WebLOAD - WebLOAD - The most flexible and cost effective software for enterprise load, stress and performance testing, integrated with DevOps processes. Click for details
Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.