MIB parsing
Recursively parses .mib files in one or more directories into a
browsable group/table hierarchy, and flags files that fail to parse.
Browse MIBs. Poll devices. See what changed.
A desktop app for browsing MIB and YANG files and polling live values from SNMP-, gNMI-, and NETCONF-managed devices — switches, routers, and similar network equipment. Point it at your MIB or YANG directories, pick a scalar, table, or path, connect over SNMPv1/v2c/v3, gNMI, or NETCONF, and fetch live values in a sortable, diffable table.
Everything you need to poke at a MIB, gNMI, or NETCONF target
Profiles
Group MIB directories into named profiles — e.g. per firmware version — and switch between them instantly.
Tree & Tables views
Browse the full group hierarchy, or flatten straight to just the SNMP tables when you know what you're after.
Tabs & split panes
Open multiple tables and scalars in tabs, across up to two side-by-side panes, to compare devices or tables at once.
SNMPv1 / v2c / v3
Per-tab connection settings, including full v3 security, authentication and privacy configuration.
Diff mode
Manual or auto-refresh fetching, with a diff mode that highlights rows added, removed, or changed between fetches.
Readable formatting
Human-readable column names and DISPLAY-HINT-aware formatting turn raw MIB identifiers and numeric values into something legible.
Walk benchmark
Time repeated SNMP walks of any subtree and see min/median/mean/P95/max and standard deviation across the runs.
gNMI support
Browse a gNMI target's advertised Capabilities and run Get requests against any path, over TLS (with an optional skip-verify mode for self-signed certs).
NETCONF support
Browse a NETCONF target's advertised <hello> capabilities and
run <get> requests over SSH, filtered by an XPath path built
from the same YANG tree gNMI uses.
YANG parsing
Point it at your .yang directories and browse the schema as a
path tree, shared by both gNMI and NETCONF — the same "browse before you fetch"
experience MIBs give SNMP.
Trap & inform listener
Listen for SNMPv1/v2c/v3 traps and informs, decoded live and labeled against your parsed MIBs, with a filterable, expandable event log.
How it works
1
Point it at your MIBs
Add one or more directories of .mib files to a profile. They're
parsed immediately into a group/table hierarchy in the sidebar.
2
Pick a table or scalar
Browse the tree or flatten to tables, then open the node you want in a tab — or right-click it to benchmark a walk instead.
3
Connect and fetch
Fill in the device address and SNMPv1/v2c/v3 credentials for that tab, then fetch once or turn on auto-refresh.
4
Read the results
Sort, resize, and toggle readable names or display-hint formatting. Turn on diff mode to see exactly what changed between fetches.
Download
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macOS
Apple Silicon & Intel
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Or via Homebrew:
brew install --cask md2perpe/tap/bryllun
Unsigned build — see the install notes for the Gatekeeper workaround.
Windows
64-bit installer
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Linux
.deb, .rpm, and AppImage — x86_64 & ARM64
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Building from source instead? See the development instructions in the README.