Comparison
TraceLoom vs BrowserStack
BrowserStack provides managed browser infrastructure with broad device coverage. TraceLoom runs Playwright tests in your own AWS account with full trace capture on every run. Different tools, different tradeoffs.
Bottom line: BrowserStack excels at cross-browser device labs (3,500+ devices) with per-session pricing starting at $129/month. TraceLoom is purpose-built for Playwright with BYOC architecture — your tests run in your own AWS account on Spot instances, with full trace capture on every run and no per-session fees.
Last updated: March 2026
| BrowserStack | TraceLoom | |
|---|---|---|
| Data ownership | BrowserStack's servers — data leaves your network | Your AWS account — traces never leave your VPC |
| Cost at scale | ~$500–1,500/mo for moderate parallelism | ~$50–300/mo compute (AWS Spot) + from $79/mo platform |
| Parallel workers | Managed sessions, scales with plan tier | 50+ concurrent workers on EC2 Spot |
| Trace capture | Screenshots & video; Playwright traces not native | Full Playwright traces for every test, every run |
| CI integration | GitHub, Jenkins, CircleCI, most CI providers | GitHub Actions, GitLab CI, Jenkins, CircleCI |
| Setup complexity | SDK install + credentials, no infra to manage | 10-min CloudFormation deploy, then connect |
| Compliance / data residency | Data hosted on BrowserStack infra, limited region control | Data stays in your VPC and chosen AWS region |
Pricing based on publicly available information as of March 2026. Your actual costs will vary.
Data Ownership
BrowserStack runs your tests on their managed infrastructure. Screenshots, videos, and logs are stored on BrowserStack's servers. This works fine for many teams, but if you operate in regulated industries (healthcare, finance, government) or have strict data residency requirements, it can be a blocker.
TraceLoom takes the opposite approach. Your tests run on EC2 instances inside your own AWS account, and Playwright traces are stored in your S3 bucket. TraceLoom's control plane only sees run metadata — pass/fail counts, timing, and test names. The actual test artifacts never leave your VPC.
Pricing at Scale
BrowserStack charges per parallel session: $129–$249/month each on annual plans. Running 5 parallel sessions costs $645–$1,245/month before any enterprise add-ons. The pricing is predictable, but it scales linearly — more parallelism means proportionally higher bills.
TraceLoom charges a flat platform fee (Free tier up to 500 runs/month, Pro at $79/month, Team at $179/month) plus your own AWS Spot compute costs. EC2 Spot instances typically run 60–90% cheaper than on-demand, so 50+ parallel workers might cost $50–$300/month in compute. The platform fee doesn't scale with parallelism.
Parallel Execution & Traces
BrowserStack supports parallel test execution across their managed browser fleet, with excellent cross-browser coverage including Safari, Firefox, and older browsers. Their Automate product provides screenshots and video recordings, though native Playwright trace support is limited compared to Selenium workflows.
TraceLoom captures full Playwright traces (.trace.zip) on every test, every run —
including DOM snapshots, network requests, and console logs. You can open any trace
in the Playwright Trace Viewer for step-by-step debugging. Parallelism scales by
adding EC2 Spot instances, with no per-session pricing tier.
Who Each Is Best For
BrowserStack is the better choice if you need cross-browser testing across Safari, Firefox, IE, and real mobile devices. Their 3,500+ device lab is unmatched. If your team uses Selenium primarily and needs broad browser coverage, BrowserStack is the established solution.
TraceLoom is built for teams that have standardized on Playwright, want their test data in their own AWS account, and need cost-efficient parallelism for large test suites. TraceLoom is pre-revenue and Playwright-only — if you need multi-framework or real-device testing, it's not the right tool today.
Frequently Asked Questions
- How does TraceLoom compare to BrowserStack?
- TraceLoom and BrowserStack both enable parallel test execution, but take fundamentally different approaches. BrowserStack provides managed browser infrastructure in their cloud, while TraceLoom runs Playwright tests on EC2 Spot instances inside your own AWS account (BYOC). TraceLoom captures full Playwright traces on every run; BrowserStack focuses on screenshots and video. TraceLoom is Playwright-native; BrowserStack started with Selenium and added Playwright support later.
- Is TraceLoom cheaper than BrowserStack?
- For Playwright-heavy workloads, typically yes. BrowserStack charges $129–$249/month per parallel session (annual billing), so moderate parallelism costs $500–$1,500/month. TraceLoom charges a flat platform fee (from $79/month) plus your own AWS Spot compute, which typically runs $50–$300/month for 1,000 tests/day. Pricing as of March 2026 — verify current rates on each vendor's site.
- When should I choose TraceLoom over BrowserStack?
- Choose TraceLoom when your tests are written in Playwright, you have an AWS account, and your test data needs to stay in your own VPC. TraceLoom is purpose-built for Playwright with BYOC architecture, full trace capture on every run, and flat pricing that does not scale with parallelism. BrowserStack is the better fit when you need real-device testing across 3,500+ devices, Safari/iOS coverage, or when your primary framework is Selenium.
- Does TraceLoom support BYOC testing?
- Yes, BYOC (Bring Your Own Cloud) is TraceLoom's core architecture. Your tests run on EC2 instances in your AWS account, and all Playwright traces stay in your S3 bucket. TraceLoom never sees your test data — only run metadata like pass/fail counts and timing.
- Can I keep my test data in my own cloud with BrowserStack?
- No. BrowserStack runs tests on their managed infrastructure. Test artifacts (screenshots, videos, logs) are stored on BrowserStack's servers. There is no self-hosted or BYOC option. If data residency or sovereignty is a requirement, you'll need an alternative approach.
Looking for more options? See our full Best BrowserStack Alternatives roundup.
Related Reading
- The True Cost of Running Playwright Tests at Scale
A detailed cost comparison across GitHub Actions, BrowserStack, Sauce Labs, and BYOC on AWS Spot.
- What is BYOC Testing? A Guide for Engineering Teams
How BYOC works, why it matters for compliance, and how it compares to managed testing platforms.
- Why Your Test Data Shouldn't Leave Your Cloud
Playwright traces contain PII and API secrets — here's why test data sovereignty matters.
Get started
Ship faster with tests you actually trust.
Deploy one CloudFormation stack, run your first suite in 15 minutes, and see every trace in your own S3 bucket.