If you decide that a managed paid service fits better, KrispCall and Calilio are two options from our paid shortlist. This guide focuses on the best free auto dialers: open-source software you can operate yourself, plus limited trials that let you evaluate a hosted service before paying.
The main distinction is what “free” covers. VICIdial, GOautodial, and ICTDialer provide open-source software; they do not make hosting, telephone numbers, calls, or administration automatically free. A hosted trial expires or reaches a limit. A free business-phone plan may provide individual calling without automated campaigns.
Free Auto Dialers And Trials: Quick Comparison
The first three entries are open-source options, followed by hosted evaluations. They are not equivalent packages: ICTDialer's repository emphasizes broadcasting, while agent-assisted contact-center workflows require different checks. We have not established a permanent free hosted plan with unrestricted auto dialing and free calls.
Free Plan, Open Source, Trial, Or Demo?
- Free plan: A hosted subscription tier with defined features and duration. Check whether automated campaigns are included.
- Open-source software: Code available under its license. You arrange a working deployment or purchase separate hosting and services.
- Free trial: Temporary or capped access to evaluate a paid service.
- Demo: A demonstration that may not provide your own live calling account.
- Refund policy: A payment and possible refund arrangement, subject to terms; it is not the same as a free trial.
Click-to-call starts an individual call. It does not establish an automated list workflow. Likewise, free software does not establish free telephone service. Read our auto dialer guide if you need the distinction between dialing modes.
How We Chose These Free Options
We reviewed official project materials, repositories, pricing pages, and trial guidance. The comparison separates software access from telephony costs and distinguishes documented dialer access from a general platform trial. We have not installed and benchmarked all the open-source options or tested every hosted trial.
Official project links are included so you can inspect the actual code, documentation, and license. Best-fit labels are editorial assessments, not verified speed, reliability, or conversion rankings. Confirm the chosen release and service terms before deploying.
1. VICIdial: Best For A Technically Managed Contact Center
VICIdial is an open-source contact-center suite built to work with Asterisk. Its project page identifies no software licensing cost and documents agent-controlled and predictive outbound dialing, callbacks, recording, and browser-based administration.
Best Fit: A team with a qualified administrator that needs a configurable agent-assisted contact-center workflow.
What To Budget: Servers, telephone service, numbers, implementation, backups, monitoring, and support. A commercial hosted service is a separate purchase.
Evaluation: Demonstrate the chosen build with your carrier, test agents, contact list, callbacks, and exclusions. Confirm the license supplied with that release and the operational support arrangement.
2. GOautodial: Best For A Technical Community-Edition Evaluation
GOautodial publishes open-source contact-center code in its official repository. Its documentation distinguishes the community project from cloud and professional-help offerings.
Best Fit: A technical team willing to assess the exact community build and its deployment requirements.
What To Check: Review release activity, unresolved issues, supported dependencies, and the maintenance route before selecting an installation image. Access to source code alone does not establish a currently supported production environment.
What To Budget: Hosting, calling, numbers, setup, maintenance, and any professional assistance. Confirm the installed edition's features rather than assuming a commercial cloud feature list applies to community code.
3. ICTDialer: Best For Evaluating Open-Source Broadcasting
ICTDialer's official repository describes an open-source, multi-user auto dialer for voice and fax broadcasting, built on FreeSWITCH and ICTCore. It explicitly separates the open-source edition from a hosted offering.
Best Fit: A technically managed automated-communications workflow that matches the repository's documented capabilities.
Important Distinction: Broadcasting and live agent-assisted prospecting are different requirements. Demonstrate agent connection, pacing, and CRM behavior if those are essential; do not assume every feature promoted for a hosted edition is present in the downloaded code.
What To Budget: Infrastructure, carrier connectivity, numbers, administration, and any integration work. Review the installed release's license and setup guidance.
Review the official ICTDialer code and installation materials.
Hosted Auto Dialer Trials Compared
A trial can help a team evaluate hosted calling without committing immediately to a long deployment. It does not provide an ongoing free service, and the demonstrated feature set may differ from the subscription you eventually choose.
JustCall: Documented Limited Dialer Evaluation
JustCall's trial guidance describes 14-day access with three power, three dynamic, and three predictive campaigns. Confirm current contact, calling-credit, number, and user limits. Limited trial access does not establish ongoing predictive entitlement on a lower paid plan.
Useful Test: Run a controlled campaign, record outcomes, request a callback, and inspect the CRM. Ask what remains accessible when the trial ends.
Ringover: Platform Trial With Dialer Access To Confirm
Ringover describes a seven-day trial for up to five users with 300 outbound minutes. It notes that some features may be limited. Ask whether the trial includes the intended Power Dialer and campaign permissions before treating it as a working dialer evaluation.
Useful Test: Demonstrate the required list workflow and ask which paid license matches the access shown.
CallHippo: Platform Trial, Not A Confirmed Permanent Free Dialer
CallHippo advertises a ten-day platform trial. Confirm whether your intended power, parallel, or other campaign mode is included, and ask about calling credits and user limits. A general platform trial does not establish unrestricted dialer access.
Useful Test: Import test records and demonstrate the exact campaign on the proposed production package.
Does A Free Business-Phone Plan Include Auto Dialing?
Not necessarily. CallHippo's Basic phone offer is an example to inspect carefully: its pricing notes state that it is free for the first six months, after which continued use requires an upgrade to Starter. We have not verified that Basic includes automated campaigns.
Do not confuse that phone offer with the separately advertised platform trial or an unrestricted free auto dialer. Check the package, duration, number charges, calling charges, and exact feature before signing up for a particular workflow.
A free CRM with click-to-call can help with individual calls but may not sequence a list. Similarly, open-source PBX software may provide building blocks rather than a ready-to-use auto dialer. Choose the actual capability required.
What Still Costs Money With A Free Auto Dialer?
Hosting And Infrastructure
Self-hosted software needs a suitable running environment. Include the server, storage, backups, monitoring, connectivity, and a recovery plan. An existing computer or server still has capacity and maintenance costs.
Numbers And Calling Service
Calls to ordinary telephone numbers normally require a telephony service with its own terms and charges. Confirm number provisioning, destinations, billable usage, and any channel or concurrent-call limits. A free software license does not supply those services.
Setup, Maintenance, And Support
Assign responsibility for installation, updates, account access, troubleshooting, and outages. A community forum is different from contracted support. If you need a consultant, include that cost before comparing a hosted subscription.
CRM Connections And Records
Budget the work needed to match contacts, log outcomes, preserve ownership, and create next tasks. Open-source access can make customization possible without making development free.
A Hypothetical Cost Example
Suppose a free software deployment incurs $45 for hosting, $80 for calling and numbers, and $150 of administration in one month. The operating total is $275, even though the software license costs $0. This is an illustration, not a vendor quote, and excludes initial implementation and other business costs.
Which Free Route Fits Your Team?
Choose an open-source evaluation when you have qualified technical ownership, a clear workflow, and time to assess the code, deployment, and carrier setup. Compare the full operating cost rather than the license alone.
Choose a hosted trial when your immediate goal is to test a managed workflow before buying. Use the actual CRM, agent interface, and call outcomes, and establish the paid terms before moving live work into it.
Keep manual calling as the baseline when the list is small and preparation matters more than throughput. Do not spend more time maintaining automation than the team saves by using it.
Free availability does not make every option appropriate for beginners. A small business without technical support may find a self-hosted project more demanding than a limited hosted evaluation. Make that decision using the team's resources and workflow.
Free Auto Dialer Evaluation Checklist
- Confirm the edition: Identify exactly which code release, hosted tier, or trial is being evaluated.
- Verify dialing behavior: Demonstrate the required agent-assisted or broadcasting workflow.
- Test contact records: Include ownership, duplicates, callback requests, and excluded contacts.
- Test calling: Use controlled live answers, voicemail, no answer, and return calls.
- Inspect integrations: Compare outcomes, notes, ownership, and tasks with the source records.
- Check costs: Reconcile carrier usage, hosting, limits, and any paid add-ons.
- Plan the exit: Demonstrate export, account closure, and what happens after trial expiry.
For setup fundamentals, see how to set up an auto dialer. Start with controlled numbers before using a limited eligible contact segment.
Data Access, Updates, And Calling Controls
For self-hosted software, establish who maintains updates, changes credentials, controls access, stores backups, and investigates incidents. Review the chosen build and current installation guidance rather than assuming an old download image is a supported production setup.
For any campaign, review contact eligibility, recipient-local timing, exclusions, messaging, and recording requirements for the actual markets and method. A free license or a product's compliance feature does not establish permission to contact someone.
If using call recording, define the applicable permissions or notices, access, retention, and deletion. For supervision, test roles and access with the actual users before expanding.
Frequently Asked Questions
Is There A Completely Free Auto Dialer?
Open-source software can have no software licensing fee, but a working deployment still needs infrastructure, calling service, and administration. We have not established a permanent hosted plan with unrestricted auto dialing and free calls in this comparison.
What Is The Best Free Auto Dialer For A Call Center?
VICIdial is a starting point for a technically managed agent-assisted contact center. GOautodial merits an assessment of its exact community build. ICTDialer is worth evaluating where its documented broadcasting workflow matches the requirement. None removes the need for operating resources.
Can I Make Free Calls With Open-Source Dialer Software?
A software license does not provide free carrier service. Confirm the calling route, number, and service terms separately. Free software and free calls are different offers.
Which Hosted Trial Includes Auto Dialer Access?
JustCall documents limited power, dynamic, and predictive campaign access during its trial. Ringover and CallHippo advertise platform trials, but the required dialer entitlement and limits should be confirmed before relying on them for a campaign test.
Is A Free Phone Plan The Same As A Free Dialer?
No. A phone plan may offer individual calling or click-to-call without automated campaigns. Check feature access and duration; CallHippo's Basic pricing notes describe a six-month free period rather than permanent free access.
Do Free Dialers Work With A CRM?
It depends on the specific release and integration. Demonstrate matching, notes, outcomes, ownership, exclusions, and tasks. A custom integration may require development even when the underlying code is free.
Is Free Dialer Software Good For Beginners?
Not automatically. Self-hosted tools need technical ownership, while hosted trials may be easier to evaluate within their limits. Compare the resources needed to reach a working configuration.
Customer Feedback And Evidence Limits
We have not assigned comparable customer ratings to the open-source projects or presented repository popularity as a reliability score. Review project issues, documentation, release information, and references for the exact deployment you intend to use.
For the hosted-trial route, a March 12, 2026 JustCall G2 review rated 4/5 valued HubSpot integration, recording, SMS, and power dialing while reporting call-quality and pricing concerns. This paraphrased account suggests useful trial checks; it is not evidence about a free production plan.
Test the actual workflow and operating cost before choosing. A general product review does not establish the limits of a particular free edition or trial.
