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Waifu2x ncnn: Image upscaler
Fast offline image enhancer / enlarger / upscaler designed for Android.
DownloadPrevious Versions
Waifu2x ncnn: Image upscaler
2.5.2
XAPK
APKs
August 5, 2025
100.04 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.4.22
XAPK
APKs
August 25, 2024
99 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: 0c492c7735486af58224facc6f57f1cb0c155fe3
Size: 99 MB
What's New:
Fix crash when notification permission was not granted
Waifu2x ncnn: Image upscaler
2.4.18
APK
August 12, 2023
112.43 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86_64
Screen DPI: 120-640dpi
SHA1: ff90cb450ea99bbb9f4e006ef3c6e6475356bbcb
Size: 112.43 MB
What's New:
Add option to keep original filename
Allowing users to overwrite original files with output files.
Allowing users to overwrite original files with output files.
Waifu2x ncnn: Image upscaler
2.4.14
APK
May 11, 2023
112.18 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.4.14
XAPK
APKs
August 25, 2024
87.34 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.4.11
APK
April 17, 2023
111.22 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86_64
Screen DPI: 120-640dpi
SHA1: b8474a3c94b5124cd1b345cdbd1e4e69d002920d
Size: 111.22 MB
What's New:
Update ncnn lib to version 20230223
Waifu2x ncnn: Image upscaler
2.4.10
APK
February 16, 2023
110.99 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86_64
Screen DPI: 120-640dpi
SHA1: 7a99216630d3eca9c5baf0ba9cebb1721707354a
Size: 110.99 MB
What's New:
Avoid zooming out to full image when comparing long images
Update ncnn version to 20221128-48-g242e775d
Fix bug: Leaving black squares while processing
Update ncnn version to 20221128-48-g242e775d
Fix bug: Leaving black squares while processing
Waifu2x ncnn: Image upscaler
2.4.6
APK
January 14, 2023
111.63 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86_64
Screen DPI: 120-640dpi
SHA1: 5e201a490579bd167a0fbebca3f119b274d1a829
Size: 111.63 MB
What's New:
Change switches layout in process options dialog
Waifu2x ncnn: Image upscaler
2.4.6
XAPK
APKs
January 14, 2023
83.19 MB
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 9a5737f399a9481ed1b5e1c808fff3dce46f3e23
Size: 83.19 MB
What's New:
Change switches layout in process options dialog
Waifu2x ncnn: Image upscaler
2.4.5
APK
December 19, 2022
111.63 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86_64
Screen DPI: 120-640dpi
SHA1: 8a0a36f43c478aafa03958b6380d8c81ea7779c5
Size: 111.63 MB
What's New:
Add advanced settings. (Click 5 times on Version preference in settings to enable)
In this settings section, the following settings are now available:
- Show TTA mode Switch
- Choose which CPU cluster(s) to use
- Set Sync Gap Mode for Real-CUGAN
- CPU threads number
Improve CPU processing speed with FP16 Arithmetic (If your CPU supports it)
Reduce NCNN lib size
UI improvement: Fix switch title layouts in process dialog
In this settings section, the following settings are now available:
- Show TTA mode Switch
- Choose which CPU cluster(s) to use
- Set Sync Gap Mode for Real-CUGAN
- CPU threads number
Improve CPU processing speed with FP16 Arithmetic (If your CPU supports it)
Reduce NCNN lib size
UI improvement: Fix switch title layouts in process dialog
Waifu2x ncnn: Image upscaler
2.4.5
XAPK
APKs
December 22, 2022
86.94 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.3.78
XAPK
APKs
December 3, 2022
87.78 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.3.74
APK
November 20, 2022
112.21 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86_64
Screen DPI: 120-640dpi
SHA1: ee8e02c3f6ac3f3ece17b29f61e9b69495e711c8
Size: 112.21 MB
What's New:
Implement image comparison, share and share actions in result image bottomsheet (Long press on image when processing is done)
Update Android Lib dependencies
Update Android Lib dependencies
Waifu2x ncnn: Image upscaler
2.3.74
XAPK
APKs
November 20, 2022
83.78 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.3.65
APK
November 14, 2022
128.7 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86, x86_64
Screen DPI: 120-640dpi
SHA1: 145fdbf7c9d4ec3f494a837d694ebf981b0a2c7f
Size: 128.7 MB
What's New:
save image as soon as it is done
show error dialog for some stupid album apps' wrong editing/sharing URI
improve error report ability
fix bug:
"keep screen on" will not work if switch back to processing screen from other app / home screen
show error dialog for some stupid album apps' wrong editing/sharing URI
improve error report ability
fix bug:
"keep screen on" will not work if switch back to processing screen from other app / home screen
Waifu2x ncnn: Image upscaler
2.3.65
XAPK
APKs
November 14, 2022
83.35 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.3.49
APK
October 30, 2022
128.7 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86, x86_64
Screen DPI: 120-640dpi
SHA1: f7d2498dbec840f6f728b739c7d328c0f3be10db
Size: 128.7 MB
What's New:
Improve image list experience
Improve stability when loading a large number of images (Not yet tested for hundreds, you can try to do so in this version :) )
Fix bug: some devices might be unable to add images with album apps
Improve stability when loading a large number of images (Not yet tested for hundreds, you can try to do so in this version :) )
Fix bug: some devices might be unable to add images with album apps
Waifu2x ncnn: Image upscaler
2.3.49
XAPK
APKs
October 30, 2022
83.35 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.3.46
APK
October 27, 2022
128.7 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86, x86_64
Screen DPI: 120-640dpi
SHA1: 9b517729bacf0edae80b3220965b371fef28d785
Size: 128.7 MB
What's New:
Update model descriptions
Add memory estimation indicator in process options dialog
Unify title text styles in the process options dialog
Adjust image cache strategy to minimize FileNotFoundException in some cases
Update Firebase libs due to recent issues
Try to fix a type of crash on result view
Add memory estimation indicator in process options dialog
Unify title text styles in the process options dialog
Adjust image cache strategy to minimize FileNotFoundException in some cases
Update Firebase libs due to recent issues
Try to fix a type of crash on result view
Waifu2x ncnn: Image upscaler
2.3.38
APK
October 11, 2022
128.71 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a, x86, x86_64
Screen DPI: 120-640dpi
SHA1: 7704b48730a71869c6b611906f74ad9bbf113414
Size: 128.71 MB
What's New:
update ncnn to 20220729-21-gbdcd68f5
(There might be some delay in pausing processing, so you need to wait 1-2 seconds for it to be fully stopped)
interrupt processing when press back button during processing
re-enable pause processing button
Fix bugs:
Wrong required RAM size displayed for OOM dialog
Display block error during processing
(There might be some delay in pausing processing, so you need to wait 1-2 seconds for it to be fully stopped)
interrupt processing when press back button during processing
re-enable pause processing button
Fix bugs:
Wrong required RAM size displayed for OOM dialog
Display block error during processing
Waifu2x ncnn: Image upscaler
2.3.38
XAPK
APKs
October 11, 2022
83.34 MB
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: f4e23aa0c11ccb9d2f1ed46822530fae48633a05
Size: 83.34 MB
What's New:
update ncnn to 20220729-21-gbdcd68f5
(There might be some delay in pausing processing, so you need to wait 1-2 seconds for it to be fully stopped)
interrupt processing when press back button during processing
re-enable pause processing button
Fix bugs:
Wrong required RAM size displayed for OOM dialog
Display block error during processing
(There might be some delay in pausing processing, so you need to wait 1-2 seconds for it to be fully stopped)
interrupt processing when press back button during processing
re-enable pause processing button
Fix bugs:
Wrong required RAM size displayed for OOM dialog
Display block error during processing
Waifu2x ncnn: Image upscaler
2.3.33
XAPK
APKs
October 1, 2022
83.34 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.3.25
XAPK
APKs
September 19, 2022
83.42 MB
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 39bbcea3e43c9b30fa4acc0ebf11b777c82a1194
Size: 83.42 MB
What's New:
Add progressbar notification for processing
Drop java level tile processing, and use full-image processing-only
Disable blurry in-progress image effects
Copy selected images to app in case revoked access of uri which is happening on some devices. (The copied images will be removed during the next startup.)
Add option to disable sleep mode while processing
Some other improvements and bug fixes
Drop java level tile processing, and use full-image processing-only
Disable blurry in-progress image effects
Copy selected images to app in case revoked access of uri which is happening on some devices. (The copied images will be removed during the next startup.)
Add option to disable sleep mode while processing
Some other improvements and bug fixes
Waifu2x ncnn: Image upscaler
2.2.9
APK
August 26, 2022
95.13 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a
Screen DPI: 120-640dpi
SHA1: 5215c16a3e5cb60d66306a11b630fe42f6a9dc1e
Size: 95.13 MB
What's New:
Add model descriptions in process dialog
Optimize model type and name styles
Update credits screen
Optimize model type and name styles
Update credits screen
Waifu2x ncnn: Image upscaler
2.2.9
XAPK
APKs
August 26, 2022
83.29 MB
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 95a16c0f1291d36745680d69a4fffb1d34e606a4
Size: 83.29 MB
What's New:
Add model descriptions in process dialog
Optimize model type and name styles
Update credits screen
Optimize model type and name styles
Update credits screen
Waifu2x ncnn: Image upscaler
2.2.6
APK
August 23, 2022
95.13 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a
Screen DPI: 120-640dpi
SHA1: 34ffe9938dc1f7cca93514366cde6cb658269daa
Size: 95.13 MB
What's New:
Update memory usage estimation based on test data
Add error message dialog
Fix bugs:
when images become inaccessible, the selected image list may not be updated and cause crashes.
version name may not be correct
Add error message dialog
Fix bugs:
when images become inaccessible, the selected image list may not be updated and cause crashes.
version name may not be correct
Waifu2x ncnn: Image upscaler
2.2.6
XAPK
APKs
August 23, 2022
83.28 MB
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 12bc360769e0afa7a22808fdcfbf0698a31707d9
Size: 83.28 MB
What's New:
Update memory usage estimation based on test data
Add error message dialog
Fix bugs:
when images become inaccessible, the selected image list may not be updated and cause crashes.
version name may not be correct
Add error message dialog
Fix bugs:
when images become inaccessible, the selected image list may not be updated and cause crashes.
version name may not be correct
Waifu2x ncnn: Image upscaler
2.1.20
XAPK
APKs
August 16, 2022
87.24 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.1.13
XAPK
APKs
August 13, 2022
87.23 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.0.32
APK
August 4, 2022
80.24 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a
Screen DPI: 120-640dpi
SHA1: efa833735633ad28ce7350e5091166779bd0b98a
Size: 80.24 MB
What's New:
Fix bug: crash on long CJK file name
Add option to choose whether to send crash log or not
Add option to choose whether to send crash log or not
Waifu2x ncnn: Image upscaler
2.0.32
XAPK
APKs
August 6, 2022
69.18 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.0.29
APK
July 27, 2022
80.24 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a
Screen DPI: 120-640dpi
SHA1: cbb2989d798d8df83f448c503c18b92aa27a5d94
Size: 80.24 MB
What's New:
Remove buggy back button on Settings Screen
Update ncnn to ver 20220721
Update ncnn to ver 20220721
Waifu2x ncnn: Image upscaler
2.0.29
XAPK
APKs
July 27, 2022
69.18 MB
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 18a9beb37b33a4dbc0b677e82a3cf623eb8df767
Size: 69.18 MB
What's New:
Remove buggy back button on Settings Screen
Update ncnn to ver 20220721
Update ncnn to ver 20220721
Waifu2x ncnn: Image upscaler
2.0.27
APK
July 21, 2022
81.46 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a
Screen DPI: 120-640dpi
SHA1: dc585158fd931e66f8da4da96df62ce181235ffd
Size: 81.46 MB
What's New:
Clean up preview image cache on startup (May makes processing faster)
Removed unused permissions (R/W External Storage)
Default to picking images from file browser and optimize settings layout
Upgrade some dependencies
Add patreon link
Fix bug: processing on very long filename images will end up crashing.
Removed unused permissions (R/W External Storage)
Default to picking images from file browser and optimize settings layout
Upgrade some dependencies
Add patreon link
Fix bug: processing on very long filename images will end up crashing.
Waifu2x ncnn: Image upscaler
2.0.27
XAPK
APKs
July 21, 2022
68.89 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
2.0.21
XAPK
APKs
July 14, 2022
74.2 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
1.6.52
XAPK
APKs
July 9, 2022
44.22 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
1.6.48
APK
April 25, 2022
49.42 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a
Screen DPI: 120-640dpi
SHA1: 684d3318deef3f83b033960afc5c2d9f230f02ec
Size: 49.42 MB
What's New:
Allow sharing multiple images to Waifu2x
Recover the selected images after being killed in background (the function of restoring last progress is in-development)
Cleanup temporary directory on start
Save image(s) after destination is selected when the selection dialog is triggered by clicking save button, no need to click save button again
Fix bug: crash after revoking external storage access permission
Recover the selected images after being killed in background (the function of restoring last progress is in-development)
Cleanup temporary directory on start
Save image(s) after destination is selected when the selection dialog is triggered by clicking save button, no need to click save button again
Fix bug: crash after revoking external storage access permission
Waifu2x ncnn: Image upscaler
1.6.48
XAPK
APKs
April 25, 2022
41.1 MB
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: bf8f8052e2ee5cec917b33f9a594373990c45596
Size: 41.1 MB
What's New:
Allow sharing multiple images to Waifu2x
Recover the selected images after being killed in background (the function of restoring last progress is in-development)
Cleanup temporary directory on start
Save image(s) after destination is selected when the selection dialog is triggered by clicking save button, no need to click save button again
Fix bug: crash after revoking external storage access permission
Recover the selected images after being killed in background (the function of restoring last progress is in-development)
Cleanup temporary directory on start
Save image(s) after destination is selected when the selection dialog is triggered by clicking save button, no need to click save button again
Fix bug: crash after revoking external storage access permission
Waifu2x ncnn: Image upscaler
1.6.37
XAPK
APKs
April 15, 2022
44.11 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
1.6.34
APK
March 29, 2022
54.13 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a
Screen DPI: 120-640dpi
SHA1: 5f998e1b3a6458601bfa9a4a164426761aa97c7f
Size: 54.13 MB
What's New:
Disable a memory limit strategy to slightly speedup the processing
Remove old waifu2x suffix when saving
Remove old waifu2x suffix when saving
Waifu2x ncnn: Image upscaler
1.6.34
XAPK
APKs
March 29, 2022
47.55 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
1.6.31
APK
March 18, 2022
54.13 MB
Requires Android: Android 7.0+
Architecture: arm64-v8a, armeabi-v7a
Screen DPI: 120-640dpi
SHA1: 3b92bea6f6c9332f93f70c4cc599f0260b3fe1d7
Size: 54.13 MB
What's New:
Add suffix to result file to separate outputs generated by different options
Increase target SDK Version
Update memory estimation during tile bitmap processing
Increase target SDK Version
Update memory estimation during tile bitmap processing
Waifu2x ncnn: Image upscaler
1.6.31
XAPK
APKs
March 18, 2022
47.55 MB
Variant
Arch
Version
DPI
Waifu2x ncnn: Image upscaler
1.6.26
XAPK
APKs
March 11, 2022
47.55 MB
Variant
Arch
Version
DPI
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