Varnish Modules¶
VMODs are extensions written for Varnish Cache. This page serves as a directory of maintained VMODs.
If you have written a VMOD and want it listed here please send a PR to this github repo and we will be happy to include it.
For other Varnish Cache related projects and utilities, please see the Varnish Extras
Instructions how to get your VMOD on this list.
| VMOD | Description | Docs | License | Status | Link | VCC | Support |
|---|---|---|---|---|---|---|---|
| abtest | AB Tests value selector | 3.0 | FreeBSD | mature | Github | 3.0 | |
| all_healthy | director to use more than one probe or a different backend’s probe | 4.1 6.0 6.2 master | FreeBSD | mature | UPLEX gitlab | 4.1 6.0 6.2 master | UPLEX |
| authentication | Authentication | 3.0 | FreeBSD | mature | Github | 3.0 | |
| awsrest | AWS Signature | 3.0 4.0 4.1 5.0 master | FreeBSD | development | Github | 3.0 4.0 4.1 5.0 master | |
| backend_dyn | create and delete backends at runtime | 4.1 | FreeBSD | development | Repos | 4.1 | UPLEX |
| basicauth | Basicauth | 4.0 4.1 5.1 6.0 | GPLv2 | mature | Repos | 4.0 4.1 5.1 6.0 | Norse Digital |
| blobcode | binary-to-text encodings and decodings for BLOBs | 4.1 5.0 5.1 | FreeBSD | included in Varnish-Cache since release 5.2 as vmod_blob | Repos | 4.1 5.0 5.1 | UPLEX |
| blobdigest | digests and hmacs for BLOBs | 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | UPLEX |
| blobsha256 | SHA256 digests and hmacs for BLOBs | 4.1 | FreeBSD | development | Repos | 4.1 | UPLEX |
| blobsynth | Generate synthetic() responses from BLOBs | 5.2 6.0 6.1 6.2 master | Public Domain | mature | UPLEX gitlab | 5.2 6.0 6.1 6.2 master | UPLEX |
| boltsort | boltsort - QueryString params sort | 3.0 4.0 | FreeBSD | mature | Github | 3.0 4.0 | |
| brotli | Varnish Fetch Processor (VFP) for brotli de-/compression | 6.2 master | FreeBSD | development | UPLEX gitlab | 6.2 master | UPLEX |
| cfg | Access to local / remote .ini / .json files, access to environment variables, and execution of local / remote Lua and JavaScript scripts | 4.1 6.0 6.2 master | FreeBSD | mature | Github | 4.1 6.0 6.2 master | Allenta Consulting S.L. |
| cluster | simple and easy cache clustering | 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 6.1 6.2 master | UPLEX |
| constant | constants as objects in VCL | 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 6.1 6.2 master | UPLEX |
| cookie | Cookie | 4.1 | FreeBSD | mature | Github | 4.1 | Varnish Software |
| cookie (newer versions) | Cookie (newer versions) | 6.1 6.2 master | FreeBSD | mature | Github | 6.1 6.2 master | UPLEX |
| crashhandler | Crashhandler | 3.0 | FreeBSD | mature | Github | 3.0 | |
| crypto | asymmetric signatures (RSA, DSA) in VCL | 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 6.1 6.2 master | UPLEX |
| curl | cURL | 4.1 | FreeBSD | mature | Github | 4.1 | Varnish Software |
| dateformat | Date conversions functions accordingly to a date format (strftime) | 4.1 5.0 | BSD 2-Clause | mature | Github | 4.1 5.0 | |
| dbrw | Database-driven rewrites | 4.0 4.1 5.1 6.0 | GPLv2 | mature | Repos | 4.0 4.1 5.1 6.0 | Norse Digital |
| dclass | dClass Apache DeviceMap | 4.1 | Apache2 | mature | Github | 4.1 | |
| dcs | Device Classifier Service | 3.0 4.0 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 3.0 4.0 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | UPLEX |
| deviceatlas | DeviceAtlas Mobile Detection | Other | mature | Varnish Software | |||
| dgram | Dgram | 4.1 | FreeBSD | development | Github | 4.1 | |
| dict | Dictionary look-up | 4.1 5.1 6.0 | GPLv2 | mature | Repos | 4.1 5.1 6.0 | Norse Digital |
| digest | Digest | 4.1 | FreeBSD | mature | Github | 4.1 | Varnish Software |
| directors | Backend selection directors | 4.0 4.1 master | FreeBSD | included | Github | 4.0 4.1 master | Varnish Software UPLEX |
| dns | DNS | 4.1 | Apache2 | mature | Github | 4.1 | |
| drupal7 | Provide Drupal-related functions within Varnish | 3.0 4.0 | FreeBSD | mature | Repos | 3.0 4.0 | |
| dynamic | Dynamic Backends from DNS lookups and service discovery from SRV records | 4.1 5.0 5.1 5.2 6.0 6.2 master | FreeBSD | mature | Github | 4.1 5.0 5.1 5.2 6.0 6.2 master | UPLEX |
| dyncounters | create custom VSC at run time | master | FreeBSD | development | Github | master | |
| esicookies | inject cookies from Set-Cookie into ESI request headers | 3.0 | FreeBSD | development | Repos | 3.0 | UPLEX |
| esiextra | ETag and Last-Modified for ESI | master | FreeBSD | development | Repos | master | UPLEX |
| etag | ETags generated in Varnish | master | FreeBSD | development | UPLEX gitlab | master | UPLEX |
| example | example vmod - hello world! | 4.1 | FreeBSD | prototype | Github | 4.1 | Varnish Software |
| fiftyonedegrees | 51Degrees Device Detection | 6.0 | EUPL | mature | Github | 6.0 | 5 1 D e g r e e s . m o b i L i m i t e d |
| file | File | 3.0 | FreeBSD | development | Github | 3.0 | |
| frozen | Efficient JSON parsing based on the frozen parser | 6.2 master | FreeBSD | mature | UPLEX gitlab | 6.2 master | UPLEX |
| gcrypt | access the libgcrypt library of cryptographic building blocks | 5.1 | FreeBSD | development | Repos | 5.1 | UPLEX |
| geoip2 | Query MaxMind GeoIP2 DB files | 4.1 6.0 6.1 master | BSD 2-Clause | mature | Github | 4.1 6.0 6.1 master | |
| globalvar | global variables as objects in VCL | 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 6.1 6.2 master | UPLEX |
| gossip | Dump information about contents stored in the cache to a JSON file | 4.1 6.0 6.2 master | FreeBSD | development | Github | 4.1 6.0 6.2 master | Allenta Consulting S.L. |
| hashids | Hashids encode and decode support | 4.1 5.0 5.1 6.0 | MIT | development | Github | 4.1 5.0 5.1 6.0 | Schibsted Media Group |
| header | Header manipulation | 4.0 | FreeBSD | mature | Github | 4.0 | Varnish Software |
| headerproxy | Add custom request/response headers via your native programming language. | 4.1 | FreeBSD | development | Github | 4.1 | |
| hoailona | support use of the SecureHD Policy service provided by Akamai Media Services | 5.0 5.1 5.2 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 5.0 5.1 5.2 6.1 6.2 master | UPLEX |
| i18n | libvmod-i18n | 3.0 | Other | mature | Github | 3.0 | |
| imgdata | imgdata | 3.0 | Other | development | Github | 3.0 | |
| ip2location | A Varnish module that enables the user to find the country, region, city, ISP and proxy information by IP address. | master | MIT | development | Github | master | IP2Location |
| ipcast | ipcast | 3.0 | FreeBSD | mature | Github | 3.0 | Varnish Software |
| jq | JSON processor | master | BSD 2-Clause | development | Github | master | |
| json | JSON | 3.0 | FreeBSD | development | Github | 3.0 | |
| ldap | LDAP authentication | 3.0 | FreeBSD | development | Github | 3.0 | |
| libvmod_unidirectors | Backend selection directors (alternative from vmod_directors) | 4.1 master | FreeBSD | mature | Github | 4.1 master | |
| lua | Lua | 4.1 | FreeBSD | prototype | Github | 4.1 | |
| maxminddb | Maxmind Geoip | 4.1 | FreeBSD | prototype | Github | 4.1 | |
| memcached | memcached | 3.0 | FreeBSD | mature | Github | 3.0 | |
| null | null - Binary data in synthetic | 3.0 | FreeBSD | mature | Github | 3.0 | |
| oob_probe | assign an out-of-band health probe to a backend | 4.1 | FreeBSD | development | Repos | 4.1 | UPLEX |
| otp | One-time password generator(HOTP/TOTP) | 5.1 master | FreeBSD | development | Github | 5.1 master | |
| parseform | Parse POST field | 4.1 5.1 master | FreeBSD | development | Github | 4.1 5.1 master | |
| pcre2 | access the PCRE2 regular expression library | 5.1 | FreeBSD | development | Repos | 5.1 | UPLEX |
| queryfilter | Simple query string filter/sort module | 3.0 4.0 4.1 5.2 6.2 | Apache2 | mature | Github | 3.0 4.0 4.1 5.2 6.2 | |
| querystring | Advanced query-string filtering. | 4.1 5.x 6.x master | GPLv3+ | mature | Github | 4.1 5.x 6.x master | |
| ratelimit | Ratelimit | 3.0 | FreeBSD | development | Github | 3.0 | |
| re | regular expression (regexp) matches and backreferences | 3.0 4.0 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 3.0 4.0 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | UPLEX |
| re2 | access the Google RE2 regular expression engine | 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | UPLEX |
| redirect | redirect | 3.0 | FreeBSD | development | Github | 3.0 | |
| redis | Access to Redis Server / Redis Cluster databases, including Redis Sentinel support | 4.1 6.0 6.2 master | FreeBSD | mature | Github | 4.1 6.0 6.2 master | Allenta Consulting S.L. |
| remoteip | Determine the actual client IP address from X-Forwarded-For or similar header | 6.0 6.1 6.2 6.3 | GPLv3+ | mature | Repos | 6.0 6.1 6.2 6.3 | Norse Digital |
| rfc6052 | rfc6052 | 4.1 | FreeBSD | development | Github | 4.1 | |
| rtstatus | RealTime Status Page | 3.0 | FreeBSD | mature | Github | 3.0 | Varnish Software |
| saintmode | Saint mode (4.1 or later) | 4.1 | FreeBSD | mature | Github | 4.1 | Varnish Software |
| secdown | Secure download | 3.0 | FreeBSD | prototype | Github | 3.0 | |
| selector | match strings associated with backends, regexen and other strings | 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 4.1 5.0 5.1 5.2 6.0 6.1 6.2 master | UPLEX |
| shield | Shield | 3.0 | FreeBSD | mature | Github | 3.0 | |
| soap | Read SOAP XML messages in HTTP request’s body and expose fields | 4.1 5.0 | BSD 2-Clause | development | Github | 4.1 5.0 | |
| softpurge | Soft purge | 4.1 | FreeBSD | mature | Github | 4.1 | Varnish Software |
| statsd | Statsd - Varnish stats | 3.0 | FreeBSD | mature | Github | 3.0 | |
| std | std - the standard VMOD | 3.0 4.0 4.1 master | FreeBSD | included | Github | 3.0 4.0 4.1 master | Varnish Software |
| taskvar | task scoped variables as objects in VCL | 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 6.1 6.2 master | UPLEX |
| tbf | Token Bucket Filtering | 4.0 4.1 5.1 6.0 | GPLv2 | mature | Repos | 4.0 4.1 5.1 6.0 | Norse Digital |
| threescale | API Proxy | 3.0 | FreeBSD | mature | Github | 3.0 | |
| throttle | Throttle | 3.0 | FreeBSD | mature | Github | 3.0 | |
| timers | Varnish Timers (timing&duration) | 3.0 | FreeBSD | mature | Github | 3.0 | |
| timeutils | Time Utils | 3.0 | FreeBSD | mature | Github | 3.0 | |
| topvar | top request (across all ESI levels) scoped variables as objects in VCL | 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 6.1 6.2 master | UPLEX |
| urlcode | URL Code | 4.1 | FreeBSD | mature | Github | 4.1 | |
| urlfilter | libvmod-urlfilter | 3.0 | Other | development | Github | 3.0 | |
| urlsort | URL Sort | 3.0 | FreeBSD | mature | Github | 3.0 | |
| utf8 | Unicode normalization, case-folding and other operations | 4.1 6.0 6.1 master | BSD 2-Clause | mature | Github | 4.1 6.0 6.1 master | |
| utils | libvmod-utils | 3.0 | Other | mature | Github | 3.0 | |
| uuid | UUID | 3.0 4.0 4.1 5.0 5.1 5.2 6.0 master | Apache2 | mature | Github | 3.0 4.0 4.1 5.0 5.1 5.2 6.0 master | |
| var | Variable Support | 4.1 | FreeBSD | mature | Github | 4.1 | Varnish Software |
| variable | Enhanced variable support | 4.0 4.1 5.1 6.0 | GPLv2 | mature | Repos | 4.0 4.1 5.1 6.0 | Norse Digital |
| vslp | VSLP (StateLess Persistence) aka shard | 4.0 4.1 master | FreeBSD | included in Varnish-Cache since release 5.0 as the shard director | Repos | 4.0 4.1 master | UPLEX |
| vsthrottle | vsthrottle - Rate-limiting/throttling (v4 and later) | 4.1 | FreeBSD | mature | Github | 4.1 | |
| weightadjust | random director with dynamically adjustable weights | 4.1 5.1 5.2 6.0 6.1 6.2 master | FreeBSD | mature | UPLEX gitlab | 4.1 5.1 5.2 6.0 6.1 6.2 master | UPLEX |
| wurfl | WURFL by ScientiaMobile (www.scientiamobile.com) gives developers high-performance device detection. | Other | mature | ScientiaMobile Inc. | |||
| xcounter | Custom counter | 6.0 6.1 master | FreeBSD | development | Github | 6.0 6.1 master | |
| xkey | Xkey (Hash-Two, Surrogate keys) | 4.1 | FreeBSD | mature | Github | 4.1 | Varnish Software |
| zlib | Uncompress request’s body before sending it to the backend. | 4.1 | BSD 2-Clause | development | Github | 4.1 |
