What it is
FilterBlade is a web application that lets you download, customize, and export NeverSink's loot filter, the most popular community filter in Path of Exile. Instead of having to manually edit text files with hundreds of lines of configuration, FilterBlade visually shows you how items will appear on your screen and lets you modify everything with clicks.
It was created by NeverSink, the same developer who maintains the original filter. It has been the de facto standard for managing loot filters in the community for years.
What problem it solves
Path of Exile is famous for the massive amount of items that drop. In endgame, a single map run can generate hundreds of items appearing on screen simultaneously. Without a filter that hides trash and highlights what's important, identifying valuable items becomes impossible. The gameplay experience degrades significantly.
PoE includes a native filter system but it requires editing text files with specific syntax. To make a decent filter from scratch you'd need to know hundreds of item types, decide colors, sizes, sounds for each one, and maintain it league to league when new items come out.
FilterBlade solves this in two ways. First, it gives you NeverSink's pre-made filter — years of iteration by someone who knows the game in detail. Second, it lets you visually customize without touching a single line of code.
What people use it for
Starting with a decent filter effortlessly: most players go to FilterBlade, choose a strictness level (how aggressively it hides items), download the filter, paste it into their PoE folder, and they're done. 5 minutes for a drastic quality-of-life improvement.
Customizing colors and sounds: if you want divine orbs to make a specific sound, or your rares to be fuchsia instead of yellow, FilterBlade lets you do it with clicks. Every change previews in real time.
Adapting the filter to your level: beginners want to see more items to understand what's valuable. Advanced players want a brutal filter that hides 95% of loot. FilterBlade has preconfigured levels that adjust to those extremes.
Quick changes according to the current league: when a league introduces new items or changes prices of existing currencies, NeverSink updates the filter and FilterBlade reflects those changes automatically. You re-download the new version and you're up to date.
Color schemes and visual styles: FilterBlade includes several predefined aesthetic "skins" (classic, neon, pastel, etc.). If you want your screen to have a certain visual vibe during gameplay, you can choose one with a click.
How it's used in practice
The basic flow is very simple. You go to filterblade.xyz. You choose what strictness level you want from NeverSink's filter (Soft, Regular, Semi-Strict, Strict, Very Strict, Uber Strict). You download the resulting .filter file. You paste it in your PoE folder (typically Documents/My Games/Path of Exile/). In-game, you go to Options → UI → Item Filter, and select the downloaded filter. Done.
For customization, inside FilterBlade you navigate the different item categories (currencies, uniques, rares, gems, etc.). Each one shows you how those items will look with the current filter. If you want to change something, click on the item, adjust color/sound/size/icon, and the change reflects immediately in the preview. When you're satisfied, you download your customized version.
Honest limitations
Only available in English. The interface has lots of information and game terms are in English exclusively.
It only edits NeverSink's filter. If you prefer other community filters (FilterBlast, NoFilterPS, etc.), FilterBlade doesn't work for those.
The interface can feel overwhelming the first time due to the amount of options. But the "download preset and use" flow is very direct if you don't want to customize.
Some advanced features require a free FilterBlade account, mainly to save your custom filters in the cloud. Without an account, you can still use and download, but you don't save configurations.
Changes between leagues sometimes require redoing custom configurations. If you have a very custom filter, it can be annoying to re-apply your changes when NeverSink publishes a new major version.
How to get started
Doesn't require installation. You go to filterblade.xyz from any browser.
For beginners, the recommendation is: choose "Regular" or "Semi-Strict" level depending on how veteran you are. Download, paste in the corresponding folder, and select it in-game. Don't touch customization at first. Play for a couple of hours with the filter as it comes and see how it feels.
Once you have some experience with how the filter categorizes items, you can come back to FilterBlade and start customizing. Small things first: change the color of some specific item type, add sound to something you want to highlight. You progress gradually.
NeverSink maintains videos on YouTube explaining major changes between versions. They're worth watching when a big new version comes out.