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IP_Subnet_Calculator
IPv4 & IPv6 Subnet Calculator
Enter an IP address and prefix length (or netmask) to compute network details. Tabs let you switch between IPv4 and IPv6.
1) Input (IPv4)
2) Results (IPv4)
Address
CIDR
Netmask
Wildcard mask
Network
Broadcast
First host
Last host
Usable hosts
Class
Scope
Binary
Hex
Reverse DNS
1) Input (IPv6)
2) Results (IPv6)
Address (compressed)
Address (full)
CIDR
Prefix length
Netmask (128-bit)
Network
First address
Last address
Total addresses
Type / Scope
Reverse DNS
February 19, 2026
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Online Image Resizer
Image Resize, Crop & Minify
Fully client‑side. Drag & drop a photo, crop, choose size/quality, and download the optimized image.
1) Select Image
Drop image or click to choose
PNG, JPEG, WebP, GIF*
2) Crop (optional)
3) Settings
4) Preview & Download
* Animated GIF/WebP will be flattened to the first frame by browsers when drawn to canvas.
February 16, 2026
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Text To PDF Converter
TXT → PDF Converter (Pro)
=[txt_to_pdf11 theme=”auto”]
February 11, 2026
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Best Mouse Jiggler to Keep Your Screen Awake
February 5, 2026
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Text To Speech:
January 4, 2026
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Typing Speed Test:
January 4, 2026
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Internet Speed Test online:
January 4, 2026
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Standard Calculator online:
January 3, 2026
Nice utility. Helpful when away from laptop