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Best ON1 Resize AI Alternatives in 2026

Updated

20 apps from image upscaling software ranked against ON1 Resize AI on the same published basis.

  1. 1
    Real-ESRGAN Open sourceLinuxMacself-hostedWebWin 8.6
    ON1 Resize AI vs Real-ESRGAN
  2. 2
    NextGenUp Free plan LinuxMacself-hostedWebWin Free8.1
    ON1 Resize AI vs NextGenUp
  3. 3
    Bigjpg Free plan AndroidapiiOSMacWeb $6/mo8.0
    ON1 Resize AI vs Bigjpg
  4. 4
    LetsEnhance Free plan api $9/mo7.8
    ON1 Resize AI vs LetsEnhance
  5. 5
    SupaRes Free plan apiWeb $9/mo7.8
    ON1 Resize AI vs SupaRes
  6. 6
    PixelPanda Image Upscaler Free plan apiextensionWeb $1.99/mo7.8
    ON1 Resize AI vs PixelPanda Image Upscaler
  7. 7
    PicWish Image Upscaler Free plan api Free7.7
    ON1 Resize AI vs PicWish Image Upscaler
  8. 8
    Krea Enhancer Free plan apiiOSWeb $5/mo7.7
    ON1 Resize AI vs Krea Enhancer
  9. 9
    Upscale.media Free plan api $5.83/mo7.7
    ON1 Resize AI vs Upscale.media
  10. 10
    Adima Image Upscaler Pro Free plan AndroidWin $4.99/mo7.7
    ON1 Resize AI vs Adima Image Upscaler Pro
  11. 11
    UpscaleAI Free plan Web $7.99/mo7.6
    ON1 Resize AI vs UpscaleAI
  12. 12
    Upscal Free plan iOSMacWin Free7.6
    ON1 Resize AI vs Upscal
  13. 13
    Upsampler Free plan api $15/mo7.5
    ON1 Resize AI vs Upsampler
  14. 14
    Topaz Labs API Free plan api $50/mo7.5
    ON1 Resize AI vs Topaz Labs API
  15. 15
    SuperImage Free plan WinMacAndroid Free7.5
    ON1 Resize AI vs SuperImage
  16. 16
    Waifu2x-Extension-GUI Free plan Win $4.99/mo7.4
    ON1 Resize AI vs Waifu2x-Extension-GUI
  17. 17
    Upscaly Studio Free plan Win Free7.3
    ON1 Resize AI vs Upscaly Studio
  18. 18
    Ximilar Image Upscaler Free plan apiWeb $69/mo7.3
    ON1 Resize AI vs Ximilar Image Upscaler
  19. 19
    Imglarger Free plan AndroidiOSMacWeb $9.99/mo7.3
    ON1 Resize AI vs Imglarger
  20. 20
    OpenPixels Free plan Web Free7.2
    ON1 Resize AI vs OpenPixels

ON1 Resize AI alternatives compared

#AppScoreFree planFromRuns on
1Real-ESRGAN8.6No—Linux, Mac, self-hosted, Web, Windows
2NextGenUp8.1Free planFreeLinux, Mac, self-hosted, Web, Windows
3Bigjpg8.0Free plan$6/moAndroid, API, iOS, Mac, Web, Windows
4LetsEnhance7.8Free plan$9/moAPI
5SupaRes7.8Free plan$9/moAPI, Web
6PixelPanda Image Upscaler7.8Free plan$1.99/moAPI, Browser, Web
7PicWish Image Upscaler7.7Free planFreeAPI
8Krea Enhancer7.7Free plan$5/moAPI, iOS, Web
9Upscale.media7.7Free plan$5.83/moAPI
10Adima Image Upscaler Pro7.7Free plan$4.99/moAndroid, Windows
11UpscaleAI7.6Free plan$7.99/moWeb
12Upscal7.6Free planFreeiOS, Mac, Windows
13Upsampler7.5Free plan$15/moAPI
14Topaz Labs API7.5Free plan$50/moAPI
15SuperImage7.5Free planFreeWindows, Mac, Android
16Waifu2x-Extension-GUI7.4Free plan$4.99/moWindows
17Upscaly Studio7.3Free planFreeWindows
18Ximilar Image Upscaler7.3Free plan$69/moAPI, Web
19Imglarger7.3Free plan$9.99/moAndroid, iOS, Mac, Web
20OpenPixels7.2Free planFreeWeb
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Questions about ON1 Resize AI alternatives

What is the best alternative to ON1 Resize AI?

Real-ESRGAN, number 1 in image upscaling software with a score of 8.6 out of 10. The others here: NextGenUp, Bigjpg, LetsEnhance and 16 more.

What is the best free alternative to ON1 Resize AI?

NextGenUp is the best-ranked alternative with a free plan. 19 of the 20 alternatives here publish a free plan on their own pricing pages.

Is there an open-source alternative to ON1 Resize AI?

Yes: Real-ESRGAN.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.