TOR is known for the famous darknet browser which makes you anonymous while surfing the web. Other than the TOR, there are some alternatives available for accessing the darknet.
I2P _designed and optimized for secret services, faster than TOR with completely distributed and self-organizing potential.
FREENET- COmes with two-tier safety measures: Darknet and opennet
FREEPTO- Linux based OS booted using USB disk on any computer. The data put on USB disk is mechanically encrypted.
JONDO LIVE-CD- Debian GNU/Linux bases OS; with pre-configured application to be used for web surfing, has Thunderbird, Pdigin, and other programmes.
TOX- Complete substitute for TOR. Provides private encrypted IM, video conferencing and calls that is user-friendly.
IPERDIA OS- Based on Linux, provides an unknown environment. Many applications such as p-2-p, BitTorrent, IRC chat and other can be obtainable.