A set of 35 iOS line icons created with Sketch. A freebie created and released by kalachakravarthi.
Micons is a set of 231 tiny icons created with vector shapes. Free AI and SVGs designed and released by Cosmin Negoita.
A set of 16 outline space icons created with Adobe Illustrator. Free Ai designed and released by Justas Galaburda.
A set including 30 random vector shaped icons designed with Adobe Illustrator. Free AI released by Ghani Pradita.
A set of coloured credit cards icons created with vector shapes. Free PSD released by Tim Parker.
A set including 70 essential line icons built on a 32px x 32px canvas. Free PSD created and released by Young Kan
PaymentFont is a sleek webfont containing 95 icons of all main payment operators and methods.
A special pack containing 312 free SVG icons by Icons8, a very large archive of pixel-perfect icons.
Here is a nice set including 50 outline art icons. Free PSD created and released by Themeraid.
Here is a free pack from Swifticons including 96 vector icons provided in 3 different styles as EPS, PNG, SVG formats.
A test pack of 50 icons from Nucleo library. Icons are provided in 2 versions (glyph & outline) and 6 formats (.png, .sketch, .ai, .pdf, .svg, .csh).
Here is the vol.2 of 50 PSD line icons freebie released some months ago by Davide Pacilio.
Minimalistic Icons is a set of clean, scalable and editable icons. It is free for commercial and personal use.