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Technology · head to head

Envoy vs Xlinesoft

Envoy logo

Envoy

Technology

A high-performance L7 proxy written in C++ that is configured by an API rather than a config file, and is usually deployed under a control plane.

From
Free
Free plan
Yes
Full reviewWebsite
Xlinesoft logo

Xlinesoft

Developer Tools

PHPRunner and ASPRunner.NET: low-code builders that turn databases into web apps

From
$599/one-time
Free plan
No
Full reviewWebsite

The short version

  • Only Envoy has a free tier, so it costs nothing to try first.
  • Each has a real cost: Envoy the configuration surface is very large and hand-written bootstrap YAML runs to hundreds of lines for routing that Nginx expresses in twenty, which is why nearly every production deployment sits under a control plane and inherits that control plane's constraints as well.; Xlinesoft the purchase includes one year of support and upgrades only; after that, newer versions require a paid upgrade.
  • They diverge on capability: Envoy covers xDS dynamic configuration, Xlinesoft covers Database to web application.
  • Prices and features above were last checked on 12 November 2026.

Where they differ

Only the attributes on which Envoy and Xlinesoft actually diverge.

Attributes where Envoy and Xlinesoft differ
AttributeEnvoyXlinesoft
Starting priceFree$599/one-time
Pricing modelopen-sourceone-time
Free tierYesNo
PlatformsWebWindows, macOS, Linux, Web
CategoryTechnologyDeveloper Tools

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Envoy

  • xDS dynamic configuration
  • Protocol breadth
  • Filter chain architecture
  • Observability by default
  • Outlier detection
  • Traffic shaping
  • mTLS termination and origination
  • Hot restart

Only in Xlinesoft

  • Database to web application
  • Page Designer and themes
  • Events, custom code and AI assistance
  • Security and dynamic permissions
  • Reports, charts and dashboards
  • Wide database support
  • Enterprise authentication
  • Application templates and plugins

What people use each for

The jobs each tool is most often brought in to do.

Envoy

  • Acting as the data plane under a service mesh or Gateway API implementation, which is how the overwhelming majority of deployments use itnot Xlinesoft
  • An edge or API gateway that needs per-route retry budgets, circuit breaking and outlier detection rather than round-robin proxyingnot Xlinesoft
  • Migrating traffic between service versions or between a monolith and its replacement, using weighted splits and shadow trafficnot Xlinesoft
  • Standardising observability across a polyglot estate, so that latency, error rates and tracing look the same regardless of the language a service is written innot Xlinesoft

Xlinesoft

  • Building an internal web application on top of an existing SQL databasenot Envoy
  • Replacing a Microsoft Access application with a browser-based onenot Envoy
  • Creating admin interfaces and customer or partner portals with role-based accessnot Envoy
  • Agencies and freelancers delivering self-hosted database applications to clientsnot Envoy
  • Teams that need low-code tooling but must keep applications on their own serversnot Envoy

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Envoy

  • The configuration surface is very large and hand-written bootstrap YAML runs to hundreds of lines for routing that Nginx expresses in twenty, which is why nearly every production deployment sits under a control plane and inherits that control plane's constraints as well.
  • xDS is the real API and it is not stable in the comfortable sense; the v2 API set was removed outright, resource types continue to be deprecated, and your control plane and Envoy binaries have to be upgraded roughly in step or the proxies stop accepting configuration.
  • Extending it properly means writing a C++ filter and building and maintaining your own Envoy binary; the alternatives are Lua, which adds per-request overhead, and proxy-wasm, whose ABI has remained effectively experimental for years with a real performance cost.
  • At sidecar density the per-proxy memory and CPU footprint is a measurable share of cluster capacity, since thousands of workloads each carry a full proxy, and this is precisely the cost that has pushed mesh projects towards node-level or ambient architectures.
  • There is no single vendor selling support for Envoy itself; you get the community plus control-plane vendors such as Solo.io and Tetrate, so an Envoy-level production bug is your own engineers in a C++ codebase unless a support contract happens to cover it.
  • Diagnosing why a request got a particular response involves reading config dumps, the stats endpoint and the RESPONSE_FLAGS codes in access logs rather than a readable error, which is a specific skill you must hire or spend months growing.

Xlinesoft

  • The purchase includes one year of support and upgrades only; after that, newer versions require a paid upgrade.
  • Multiple database connections, REST API connections and single sign-on through Active Directory, Okta or SAML are Enterprise-only, which raises the price from $599 to $999 per developer.
  • Self-hosted only. Hosting, database administration, backups, runtime updates and access-control configuration remain the customer's job, as Xlinesoft's own product facts page states.
  • Applications built on Microsoft Access require a Windows web server.
  • PHPRunner and ASPRunner.NET are separate products with separate licences, so moving a project between PHP and .NET is not covered by one purchase.

Pricing, plan by plan

Envoy

Free

No published plan breakdown. See the Envoy review.

Xlinesoft

$599/one-time
  • PHPRunner Professional$599/one-time
    • Single developer licence
    • Core application-building product
    • One year of email support and upgrades
  • PHPRunner Enterprise Edition$999/one-time
    • Single developer licence
    • Multiple database and REST API connections
    • Data encryption
  • PHPRunner MultiDev Edition$3599/one-time
    • Three Enterprise Edition licences
    • Multiple developers working on the same project at the same time
    • One year of email support and upgrades
  • ASPRunner.NET Professional$599/one-time
    • Generates ASP.NET web applications
    • Same database coverage and security model as PHPRunner
    • Enterprise Edition available

Which should you pick?

Choose Envoy if

  • You need xds dynamic configuration.
  • You want to start without paying.
  • You also want protocol breadth.
Envoy review

Choose Xlinesoft if

  • You need database to web application.
  • You work on Windows, macOS, Linux, Web.
  • You also want page designer and themes.
Xlinesoft review

Questions people ask

Is Envoy or Xlinesoft better?
Neither clearly leads. Envoy starts at Free and Xlinesoft at $599/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Envoy or Xlinesoft?
Envoy has a free tier; the other does not. Paid plans start at Free for Envoy and $599/one-time for Xlinesoft.
Does Envoy or Xlinesoft run on more platforms?
Envoy runs on Web. Xlinesoft runs on Windows, macOS, Linux, Web.
Can I use Envoy for free?
Yes. Envoy has a free tier, so you can try it without paying. Xlinesoft starts at $599/one-time.
What is Envoy best used for?
Envoy is most often used for acting as the data plane under a service mesh or gateway api implementation, which is how the overwhelming majority of deployments use it, an edge or api gateway that needs per-route retry budgets, circuit breaking and outlier detection rather than round-robin proxying, migrating traffic between service versions or between a monolith and its replacement, using weighted splits and shadow traffic, standardising observability across a polyglot estate, so that latency, error rates and tracing look the same regardless of the language a service is written in. Of those, acting as the data plane under a service mesh or gateway api implementation, which is how the overwhelming majority of deployments use it and an edge or api gateway that needs per-route retry budgets, circuit breaking and outlier detection rather than round-robin proxying are not what Xlinesoft is typically brought in for.
What can Envoy do that Xlinesoft cannot?
Envoy covers xDS dynamic configuration, Protocol breadth, Filter chain architecture, Observability by default. Xlinesoft covers Database to web application, Page Designer and themes, Events, custom code and AI assistance, Security and dynamic permissions.

Answered from the vendors’ own pages

Envoy: Should I run Envoy on its own, or under a control plane?

Almost always under one. Directly authoring xDS or static bootstrap configuration is viable for a handful of routes and becomes unmanageable beyond that. Envoy Gateway, Istio, Contour, Gloo and Consul all exist to generate that configuration for you.

Xlinesoft: How much does PHPRunner cost?

PHPRunner Professional is $599, Enterprise Edition is $999 and MultiDev Edition, which includes three Enterprise licences, is $3,599. Professional and Enterprise prices are per developer, and each purchase includes one year of email support and free upgrades.

Source
Envoy: How does it compare with Nginx or HAProxy?

Envoy is dynamically configured over an API and instrumented far more heavily; Nginx and HAProxy are faster to configure and lighter for straightforward reverse proxying. If you never need to change routing without a reload, Envoy is more machinery than the problem requires.

Xlinesoft: Which databases does PHPRunner support?

MySQL, MariaDB, Microsoft SQL Server, PostgreSQL, Oracle, Microsoft Access, IBM DB2, Informix, SQLite and ODBC-compatible databases. Using multiple database connections in one project is an Enterprise Edition feature.

Source
Envoy: What does it cost?

Nothing to licence; it is Apache 2.0 and there is no paid edition. The cost is engineering time and, for most organisations, a commercial control plane or cloud service that packages it.

Xlinesoft: Is there a free trial?

Yes. PHPRunner can be downloaded and evaluated for 21 days, and public live demos show the generated applications, with add, edit and delete disabled.

Source
Envoy: Can I write extensions without C++?

You can write Lua filters or proxy-wasm modules in Rust, Go, C++ or AssemblyScript. Both carry per-request overhead compared with a native filter, and the Wasm path has been slower to stabilise than the project originally projected.

Xlinesoft: Where do PHPRunner applications run?

On your own web server. The documented options are Apache and Microsoft IIS with a compatible PHP runtime and database extensions, and a built-in web server is available for local testing. The development application itself runs on Windows, macOS and Linux.

Source
Envoy: Is it a CNCF project?

Yes, it is a graduated CNCF project licensed under Apache 2.0, which means the trademark and governance sit with the foundation rather than with Lyft or any vendor.

Xlinesoft: What does the Enterprise Edition add?

Multiple database and REST API connections, data encryption, and enterprise authentication including Active Directory, Okta, Azure AD, OpenID and SAML, on top of all Professional features.

Source
Xlinesoft: What is ASPRunner.NET?

Xlinesoft's equivalent builder for ASP.NET. It generates database-driven ASP.NET web applications with the same kind of forms, reports, charts, permissions and Page Designer, and is sold separately from $599.

Source
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