This topic is for everyone who search for free HDRIs to use into Octane render
There's currently 273 free HDRIs that you can download here, right now in one topic
If you got good bookmarks and links for free HDRIs or HDRIs related tools/plugins/scripts post them here
I will manually copy your links and post them in the first message of this topic. That way the topic is clean
Don't forget to always put a link to the website and write some text about the quality or what's included
Tools for viewing and making HDRIs
Bracket for Windows, OSX and Linux
bracket can be used to create, view, analyze, calibrate, tonemap, and display HDR images
Available for Windows XP/Vista/Seven, Mac OSX, and Linux. Download size is around 9mb
Picturenaut 3 for Windows
One of the best free (donationware) software to make HDRIs on Windows
There's tons of powerfull features and you can even add plugins on top of Picturenaut
Free HDRIs from various websites
HDRLabs smart IBL archive (64 files)
Very high quality HDRIs with high resolution backplates included
All files are in panorama projection ready to use in Octane out of the box
Overall its one of the best archive of HDR files you can find
Zbyg Pack 1 / Zbyg Pack 2 / Zbyg Pack 3 (34 files)
Three pack of studio HDRIS ready to use in Octane render
Perfect for packshots. Make nice reflections in metal surfaces
Medium resolution files (submitted by Psor)
Highres Zbyg pack by Thykka (24 files)
Thykka used the Zbyg scenes and made higher resolution renders of them
Good for rendering high-resolution packshots or car renders (submitted by Psor)
Openfootage.net (26 files)
Lot of good quality HDRIs mainly nature things like forests.
High resolution backplate are included (submitted by gzavye)
SHTL Sky HDRIs (3 files)
Three high quality HDRIs of skies made in Eon Vue
Ultra high resolution up to 20'000 pixels
Lightworks HDRIs starter collection (18 files)
18 good quality HDRIs in various projections
Available in spherical, panorama and vertical cross
Unparent.com lightprobes (18 files)
18 HDRIS in lightprobe projection from unparent.com
(you need to make them panorama, to use them in Octane)
Bernhard Vogl HDRIs (14 files)
14 HDRIS from Bernhard Vogl website
In equirectangular (panorama) and lightprobe projection
ICT HDRIs (6 files)
6 HDRIS from the ICT (institure for creative technologies)
Available in HDR or EXR file format (panorama)
Zwischendrin HDRIs (11 files)
11 HDRIS from Zwischendrin (they also sell HDRIS)
Available in various projections mode and ready to use in Octane render
Hdrmill HDRIs (4 files)
4 HDRIS from hdrmill (they sell good HDRIS also)
Brian James HDRIs (39 files)
6 different packs of various HDRIs in good quality and resolution. (submitted by SreckoM)
Crazy8studio HDRIs (12 files)
12 high resolution HDRIs environements (8k by 4k pixels) + background plates
They are ready to use with Octane Render
Don't forget to always read License agreements and term of use, im not responsible for any wrong usage of those HDRIS
Please report dead links, either by sending me a private message or by replying to this topic