Best Veterinary PACS Imaging Software: 6 Options for 2027

Key Takeaways

• Choose the category before the brand: a vendor-hosted cloud PACS, a web PACS tied to a diagnostics vendor, a managed PACS service, or a free desktop viewer. Each answers a different question about support, control and cost.

• No vendor on this list publishes a list price for a full clinic setup. Purview's pricing page describes study-volume tiers and sends larger volumes to a quote, and Asteris prices its cloud product per case.

• Get practice-system integration in writing for your own system and version before you shortlist. RAD365 names a short list of supported practice systems, and IDEXX says its Web PACS integrates with most practice systems.

• A free viewer is not a PACS. A 2019 comparison of free DICOM viewers judged them sufficient for most veterinary viewing, but none had veterinary-specific tools built in.

• Model cost from your monthly study count, storage, backup and support hours, then compare quotes on that basis.

What a veterinary PACS has to do

A veterinary PACS (picture archiving and communication system) receives images from radiography, ultrasound, CT, MRI and dental equipment, stores them, and lets authorized staff and outside specialists view and share them. TL;DR: buy for the modalities you run, the practice system you use, a backup rule you can state, and an exit path you can test, then compare quotes against your monthly study count rather than a feature list.

Interoperability runs on DICOM, the image standard that lets equipment and software from different makers exchange studies. A 2011 trade article quoted a vendor executive who said integration is useful "as long as it is an open standard DICOM integration," and warned that proprietary links can lock a practice to one vendor.

Backup is the second buying test. Backup rule: data in 3 distinct locations according to Veterinary Practice News (2011), which quotes a veterinarian's "redundancy times three" rule. Ask every vendor where its copies sit, how long it keeps them, and how a restore works after data loss.

How we evaluated these tools

We built this as an informed buyer's guide from public information. We read each vendor's product, pricing or FAQ pages, checked the independent sources we could find, and weighted six criteria. The weights are our judgment, not a vendor score, and we did not test any product. The independent evidence is thin and dated, so each older source carries its year.

Free DICOM viewers compared: 8 according to Journal of Digital Imaging (2019). The authors judged the viewers "sufficient for most veterinary purposes," but none had veterinary-specific tools built in.

Weights total 100%. We did not publish numeric scores; the scale is a rubric you can apply on a sales call, and a missing answer should count against a vendor until it is supplied.

Feature matrix from public vendor pages

Checked October 19, 2026: we re-opened the IDEXX, RAD365 and Asteris pages cited below on that date. This matrix records only what each vendor's own pages state. "Not stated" means the page we opened did not say, which makes it a question for the vendor, not a verdict on the product.

Our read: IDEXX and RAD365 publish the most workflow detail, which makes their quotes easier to check. Asteris, Purview and Connect.Vet publish little about modalities or practice-system links on the pages we opened, so their sales calls will carry more of the diligence.

IDEXX Web PACS launch: subscription model, September 2015 according to AuntMinnie (2015). That report described the product as DICOM-compliant, but the current IDEXX page does not repeat any subscription terms, so ask for them in writing.

Pricing and total cost of ownership

No vendor on this list publishes a comparable list price for a full clinic setup. Two describe their pricing structure in public. Purview's pricing page lists study-volume tiers and a complexity-based installation fee, adds extra charges for very large studies, and sends volumes above its top tier to a quote. Asteris says its cloud product, NewLumen, is "priced per case, by modality with study size tiers and volume bands" according to Asteris (2026), in an article dated September 4, 2026. Purview's pricing page is the only one we opened that names a starting fee, and Asteris's article prints no dollar figures, so the quote is the number that will count.

Total cost of ownership is what a quote can hide. A 2011 trade article lists the questions to ask: installation fees, data-based charges, backup locations, retention periods, restoration after data loss, administrator-assigned access rights, synchronization across sites, support for non-DICOM data, lossy compression, and whether round-the-clock support is included. Put each answer in the same worksheet as your study count, and compare totals rather than monthly lines. If your practice system already reports imaging volume, our reporting and analytics roundup shows how to pull that count.

Vendor profiles, with evidence

Each profile separates what the vendor states from our read. The published figures below are the claims most worth checking, and every link points to a page we opened.

IDEXX Web PACS

Published facts: IDEXX describes Web PACS as web-based, so it needs no local hardware, IT maintenance or manual upgrades. It covers x-ray, dental, ultrasound, MRI and CT in one workflow, integrates with most practice systems, and offers round-the-clock access to IDEXX telemedicine consultants. Its AI viewer aligns hanging protocols and calculates a vertebral heart score. The product page publishes no price or subscription terms.

Our read: The fit is strongest for a clinic already inside IDEXX's diagnostics and telemedicine ecosystem. The speed claim in the table above is marketing, and we could not check it against any clinic's data.

Best fit: General practices, small and mid-size, that already use IDEXX diagnostics. If you are also weighing IDEXX's practice software against Cornerstone, read our IDEXX Neo vs. Cornerstone comparison.

Limitations: Pricing is not public, and telemedicine reads route through IDEXX's own network. Ask how studies and records export if you later leave.

Implementation: Most of the work sits in the practice-system link. Ask who builds it, which diagnostic codes map to which products, and what staff must do when a study arrives.

Evidence: IDEXX Web PACS page

RAD365 Veterinary PACS

Published facts: RAD365 sells a cloud-native PACS with round-the-clock managed operations, tiered L1 and L2 support, and contractual SLAs. It lists DICOM 3.0 compliance and modalities from DR/CR to endoscopy. Its FAQ recommends hybrid architectures for practices that need both speed and redundancy, and its pricing is a custom quote for cloud-hosted plans. Migration covers DICOM transfer, metadata mapping, quality validation and parallel-run testing.

Our read: Outsourced administration is the product here, not only the software. RAD365's 2026 buyer's guide ranks RAD365 first and recommends its cloud or hybrid PACS for most practices, so treat that guide as sales material.

Best fit: Multi-site groups and practices without in-house imaging IT.

Limitations: The named practice-system list is short, so an unnamed system needs a custom path. You also depend on RAD365's support model, so get escalation and data-exit terms in writing.

Implementation: Ask for the migration plan with dates, and for the parallel-run criteria that decide when your old archive can retire.

Evidence: RAD365 veterinary PACS page and RAD365 2026 buyer's guide

Asteris Keystone

Published facts: Asteris offers NewLumen, a cloud product priced per case, and Keystone Omni, on-premise storage offered pay-as-you-go with no extended service or annual maintenance fees, according to its 2026 article. Its service page promises round-the-clock help and no lock-in contracts, and it sends pricing questions to sales.

Our read: Per-case pricing ties cost to volume and modality mix. A practice with heavy CT or MRI workloads should check how study size tiers apply before comparing it with flat-rate options. Asteris also publishes its own cloud-versus-on-premise framing, which is vendor content.

Best fit: Practices that want both cloud and on-premise options from one vendor, and want to leave that choice open.

Limitations: No public price, and its pages say little about modalities or practice-system links.

Implementation: Confirm where storage sits, what migration covers, and what round-the-clock support includes in writing.

Evidence: Asteris cloud vs. on-premise article and Asteris service page

Purview Image

Published facts: Purview Image is cloud-based. Full DICOM studies upload and view in any browser with no downloads, and the site describes the service as HIPAA compliant and FDA certified, which are vendor claims. Its pricing page describes study-volume tiers, a complexity-based installation fee, extra charges for very large studies, and a quote above its top tier. Its FAQ says animal hospitals are among its customers.

Our read: Purview suits referral and specialty practices that share studies with outside clinicians. Tiers make cost predictable only if you know your monthly count, and very large studies deserve a direct question before you commit.

Best fit: Referral practices and clinics that send studies out.

Limitations: The regulatory claims are vendor wording, so have your compliance owner read them. Large-study charges and the per-location fee are the lines most likely to surprise a buyer.

Implementation: Ask for the installation complexity assessment in writing, and for the legacy migration approach, which the pricing page says is evaluated per client.

Evidence: Purview Image page and Purview's post on low-cost veterinary PACS, which describes pay-as-you-go pricing and is dated 2017.

Connect.Vet

Published facts: The Vet Solutions product page calls Connect.Vet "the new standard in veterinary image management systems" and says it is "developed by and for vets." The page has an add-to-basket button but shows no price, and it does not list modalities, deployment, platforms or packages.

Our read: Public evidence is the thinnest on this list. From the pages we opened, we cannot say whether Connect.Vet fits a small-animal clinic, and that is the largest gap in this review.

Best fit: Veterinarians who want a vendor-supported image system and will request a full written specification first.

Limitations: No published price, and the product page omits deployment and modality detail.

Implementation: Before any shortlist decision, get written answers on offline operation, backup location, modalities and practice-system links.

Evidence: Connect.Vet product page

Horos

Published facts: The Horos project describes it as free, open-source software under the GNU Lesser General Public License, built for macOS, and it points Windows users to a different product. Purview's Horos page calls it a free, open-source medical image viewer and says Purview can connect it to cloud image storage. The 2019 study found Horos among the freeware viewers with the most predefined tools, and noted that Horos and OsiriX Lite can run veterinary plug-ins.

Our read: Horos is a viewer for one or a few Macs, not a multi-user archive. It makes sense for a single-room clinic, a teaching setup, or a low-budget trial of a workflow.

Best fit: Single-Mac viewing, teaching and budget-first trials.

Limitations: macOS only, no built-in veterinary tools, and your own IT must own backups, access and sharing.

Implementation: Install on a dedicated Mac, set a backup schedule, and test a restore before anyone relies on the archive.

Evidence: Purview's Horos page and the 2019 study in Journal of Digital Imaging

Who this is for

Match the vendor to your situation, not to the brand.

• Practice already on IDEXX diagnostics: start with IDEXX Web PACS and get the practice-system link in writing. Red flags: the practice system is not confirmed in writing; you need on-premise storage only; you need offline reads that the vendor cannot confirm.

• Multi-site group without imaging IT: start with RAD365. Red flags: your practice system is not on its named list; you want to keep PACS administration in-house; you need a published price before any sales call.

• Referral or specialty practice that sends studies out: start with Purview Image or Asteris, depending on whether you prefer tiered study volumes or per-case pricing. Red flags: your volume sits above the top published tier; you need a fixed price with no usage terms; your large-study mix is unknown.

• Single-Mac or teaching setup on a tight budget: start with Horos. Red flags: Windows workstations only; more than one user needs a shared archive with access controls; you need reporting or multi-site sharing.

• Practice comparing ezyVet with Cornerstone: read our ezyVet vs. Cornerstone comparison first. Red flags: no written confirmation of the link to your exact system; no named owner for the integration; a vendor that will not state its data-export format.

Where the pain sits: images that never reach the record

The costly gap is rarely the viewer. It is the handoff from a finished study to the patient record and then to the invoice. US Tech Automations can configure matching and review steps around a PACS that you have already chosen. It does not replace the PACS, and the two workflows below are proposals, not a description of any live deployment.

Proposed workflow A, study-to-record matching. The trigger is a new study in the PACS export carrying a study_uid. The workflow searches the practice system for the matching diagnostic request. In ezyVet's PACS developer reference, diagnostic_request_id appears among the diagnostic result fields as the request link, so it is the natural match key if ezyVet is your system. The output is a matched record with an image link, plus an exceptions queue for studies that do not match. Prerequisites: read access to the PACS export, a practice-system API credential, and token handling that refreshes the access token before its 12-hour expiry. Human review: a technician confirms each exception and every match that changes a patient record.

Proposed workflow B, charge capture. The trigger is a diagnostic result marked complete in the practice system. The workflow drafts a charge line for the mapped imaging code and attaches the study link. Prerequisites: a current code-to-product map signed off by the practice manager, and a credential with write access that the practice can revoke. Human review: the practice manager approves each draft before it reaches an invoice. Our billing software roundup covers the invoice side in more depth.

A worked scenario, labeled as illustrative

This scenario is illustrative, and no clinic's results are measured here. Assume a clinic takes 120 radiographs a month and staff spend 3 minutes per study matching images to patient records, which is 360 minutes, or 6 hours. Assume 12 studies, one in ten, fail to match and need a 10-minute chase, adding 120 minutes, or 2 hours, for 8 hours a month in total. In the proposed design, the matcher handles the other 108 studies and a technician spot-checks each one at 30 seconds, which is 54 minutes, or 0.9 hours, while the 12 exceptions still take 2 hours. The new total is 2.9 hours, a saving of 5.1 hours a month. In ezyVet's PACS developer reference, study_uid is a diagnostic result field and expires_in is the token lifetime field, so both belong in your test plan. The saving depends entirely on the match rate, which no vendor on this list publishes, so test it on one month of your own data before you count it.

DIY or buy: Zapier, Make, n8n or in-house

For many clinics the real alternative is not another PACS. It is a no-code tool such as Zapier, Make or n8n, or a script an in-house developer writes. Those tools can support run histories, retries, error branches and audit evidence when they are configured. Make's help center, for example, lists five error handlers, Skip, Retry, Resume, Commit and Rollback, and stores errored runs for review in an incomplete-executions queue (see the figures table above).

What the buyer still owns with any of these is observability (who reads the run log), idempotency (so a rerun does not post a second charge), escalation paths, access controls on the practice-system credential, and maintenance when the practice system's API changes. A proposed US Tech Automations design could configure those differently: capped retries keyed on study_uid so reruns do not duplicate matches, an escalation role for exceptions, a credential scoped to read and draft actions, and a weekly run-log review by the practice manager. Its prerequisites are the same as above: a sandbox site, written sign-off on which fields may write to the record, and a named owner for the workflow. Until those are in place, the design is a proposal.

When NOT to use US Tech Automations

Skip an automation layer if your PACS already links studies to the patient record in a way your staff trusts, and your study count is low enough that a technician can match by hand in a few minutes a day. Skip it if you need managed PACS operations, meaning someone else watches the archive and answers incidents around the clock; that is a service decision, and a managed PACS vendor is the simpler answer. Skip it if your whole need is a handful of studies viewed on one Mac, where Horos, a spreadsheet and a tested backup rule may be enough.

Common mistakes

• Comparing brochures instead of quotes built from your own monthly study count.

• Leaving the practice-system question until after you sign.

• Treating a viewer as an archive. The 2019 study assessed viewing tools, not backup or multi-user archives.

• Assuming "cloud" means "works during an outage." Ask what happens to reads when the connection drops.

• Buying storage without a restore test, which is why the three-location backup rule above matters.

• Letting a vendor's own buyer's guide set your criteria. RAD365's guide ranks itself first.

Decision checklist

1. List your modalities and the last 12 months of study counts for each.

2. Get the practice-system link confirmed in writing, naming your system and its version.

3. Ask where each copy lives, how many copies exist, and how a restore is tested.

4. Require a quote that lists installation, multi-location, large-study, migration and support lines.

5. Confirm what reads do during an outage and who answers after hours.

6. Confirm the export format and how long it takes to leave.

7. Pilot any automation only after its human review points are named and signed off.

Frequently asked questions

Which veterinary PACS is cheapest?

No vendor on this list publishes a comparable list price, so no cheapest option can be named from public data. Build each quote from your monthly study count, storage, backup and support needs, then compare totals.

Can a free viewer replace a PACS?

A free viewer cannot replace a PACS for a multi-user clinic. The 2019 comparison judged free viewers sufficient for most veterinary viewing, but none of them had veterinary-specific tools, and Horos runs on macOS only.

Do I need on-premise hardware?

Not always. IDEXX describes Web PACS as needing no local hardware, RAD365 is cloud-native with a hybrid option, and Asteris offers both cloud and on-premise storage.

Does the PACS have to connect to my practice software?

Yes, if you want images linked to the patient record without manual steps. Check each vendor's named practice systems first, because RAD365 lists a short set and IDEXX says it integrates with most systems.

How long does setup take?

RAD365 gives a typical implementation of 2–4 weeks, as shown in the figures table above. The other vendors on this list publish no timeline, so ask for a written plan with dates before you sign.

Is US Tech Automations a PACS?

It is not. It is a workflow layer that matches studies to records and routes exceptions to people, and it needs a PACS and a practice system underneath.

Bottom line

Pick the category first, then the vendor whose published facts match your modalities and practice system, and make every quote show your monthly study count. Use a free viewer only for single-user viewing. If you want to see how a configured design handles study matching and charge review, see how US Tech Automations configures this and ask for its prerequisites in writing.