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ESPHome vs TP-Link Kasa

ESPHome logo

ESPHome

Software

Custom firmware for ESP8266/ESP32 smart home devices

From
Free
Rated
-
Full reviewWebsite
TP-Link Kasa logo

TP-Link Kasa

Software

Affordable smart home devices with easy setup

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only ESPHome has a free tier, so it costs nothing to try first.
  • Each has a real cost: ESPHome eSPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects; TP-Link Kasa devices are sold individually rather than as a subscription, for example the Smart Video Doorbell Camera costs 49.99 USD and the 4-pack Smart Light Bulb costs 39.99 USD
  • They diverge on capability: ESPHome covers YAML Configuration, TP-Link Kasa covers Affordable.

Where they differ

Only the attributes on which ESPHome and TP-Link Kasa actually diverge.

Attributes where ESPHome and TP-Link Kasa differ
AttributeESPHomeTP-Link Kasa
Starting priceFreeOn request
Pricing modelopen-sourceone-time
Free tierYesNo
PlatformsESP8266, ESP32, Docker, Raspberry PiIOS, Android, Web
Founded20181996

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

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 ESPHome

  • YAML Configuration
  • OTA Updates
  • Home Assistant Native
  • Custom Components
  • Home Assistant
  • MQTT
  • API
  • Native integration

Only in TP-Link Kasa

  • Affordable
  • No Hub Required
  • Energy Monitoring
  • Scheduling
  • Alexa
  • Google Home
  • SmartThings
  • IFTTT

What people use each for

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

ESPHome

  • Building custom smart home sensors and switches on ESP32 hardwarenot TP-Link Kasa
  • Replacing vendor cloud firmware on ESP based devices with locally controlled firmwarenot TP-Link Kasa
  • Integrating DIY devices into Home Assistant over a native API or MQTTnot TP-Link Kasa

TP-Link Kasa

  • Energy monitoringnot ESPHome
  • Automationnot ESPHome
  • Voice controlnot ESPHome
  • Budget smart homenot ESPHome

Where each one falls short

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

ESPHome

  • ESPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects
  • Support for ESP32-H2, RP2040 and other newer chips is documented as less mature
  • Large displays and some sensors do not work well on ESP8266 because of its limited RAM, which is roughly a fifth of an ESP32

TP-Link Kasa

  • Devices are sold individually rather than as a subscription, for example the Smart Video Doorbell Camera costs 49.99 USD and the 4-pack Smart Light Bulb costs 39.99 USD

Pricing, plan by plan

ESPHome

Free
  • CommunityFree
    • Full firmware
    • Home Assistant integration
    • Custom sensors

TP-Link Kasa

On request
  • Smart Plug$10/month
    • WiFi
    • Voice control
    • Scheduling
  • Smart Switch$20/month
    • In-wall installation
    • Dimming
    • 3-way support

Which should you pick?

Choose ESPHome if

  • You need yaml configuration.
  • You want to start without paying.
  • You work on ESP8266, ESP32, Docker, Raspberry Pi.
  • You also want ota updates.
ESPHome review

Choose TP-Link Kasa if

  • You need affordable.
  • You work on IOS, Android, Web.
  • You also want no hub required.
TP-Link Kasa review

Questions people ask

Is ESPHome or TP-Link Kasa better?
Neither clearly leads. ESPHome starts at Free and TP-Link Kasa at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ESPHome or TP-Link Kasa?
ESPHome has a free tier; the other does not. Paid plans start at Free for ESPHome and On request for TP-Link Kasa.
Does ESPHome or TP-Link Kasa run on more platforms?
ESPHome runs on ESP8266, ESP32, Docker, Raspberry Pi. TP-Link Kasa runs on IOS, Android, Web.
Can I use ESPHome for free?
Yes. ESPHome has a free tier, so you can try it without paying. TP-Link Kasa starts at On request.
What is ESPHome best used for?
ESPHome is most often used for building custom smart home sensors and switches on esp32 hardware, replacing vendor cloud firmware on esp based devices with locally controlled firmware, integrating diy devices into home assistant over a native api or mqtt. Of those, building custom smart home sensors and switches on esp32 hardware and replacing vendor cloud firmware on esp based devices with locally controlled firmware are not what TP-Link Kasa is typically brought in for.
What can ESPHome do that TP-Link Kasa cannot?
ESPHome covers YAML Configuration, OTA Updates, Home Assistant Native, Custom Components. TP-Link Kasa covers Affordable, No Hub Required, Energy Monitoring, Scheduling.
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