Best Link Building Software in 2026
Updated
In short: GuestPostCRM is ranked #1 of 26 as of 4 October 2026, ahead of Authoritas Link Building and ColdSEO. The best-ranked option with a free plan is Authoritas Link Building. The lowest first paid tier on this page is JustReachOut at $8.17/mo.
Link building software can help organize prospect discovery, outreach and placement follow-through. Compared on monthly prospect limits and prospect discovery, the entries also differ in outreach automation and digital PR workflows. Placement monitoring can matter after outreach, while included team seats and API access help frame how a tool fits a team’s process. ColdSEO, GuestPostCRM and Authoritas Link Building appear among the opening entries, followed by Linkody, LinkAssistant and Pitchbox. Free-plan availability and paid starting prices provide additional cost context as you consider which listed capabilities align with the way your team manages link-building work.
26 link building software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
| # | Platform | Score | Why | From | Free plan | Paid from | Prospect discovery | |
|---|---|---|---|---|---|---|---|---|
| 1 | GuestPostCRM | 7.4 | RecognisedAPIDocumented | $20/mo | Yes | 20 /mo | Yes | View |
| 2 | Authoritas Link Building | 7.3 | RecognisedAPIDocumented | £99/mo | Yes | — | Yes | View |
| 3 | ColdSEO | 7.3 | RecognisedAPIDocumented | $79/mo | Yes | 79 /mo | Yes | View |
| 4 |  Linkody | 7.2 | RecognisedAPIDocumented | $14.90/mo | No | — | Yes | View |
| 5 | MentionAgent | 6.8 | RecognisedAPIDocumented | $99/mo | — | 99 /mo | Yes | View |
| 6 |  LinkAssistant | 5.9 | RecognisedAPIDocumented | $10.75/mo | Yes | — | Yes | View |
| 7 | BacklinkManager | 5.6 | RecognisedAPIDocumented | — | Yes | 39 /mo | No | View |
| 8 |  JustReachOut | 5.4 | RecognisedAPIDocumented | $8.17/mo | No | 98 /mo | Yes | View |
| 9 |  Link Manager | 5.4 | RecognisedAPIDocumented | — | Yes | — | — | View |
| 10 |  linkOutreacher | 5.4 | RecognisedAPIDocumented | — | Yes | — | Yes | View |
| 11 | Pitchbox | 5.4 | RecognisedAPIDocumented | $210/mo | No | 210 /mo | Yes | View |
| 12 | BuzzStream | 5.2 | RecognisedAPIDocumented | — | No | — | Yes | View |
| 13 | Respona | 5.1 | RecognisedAPIDocumented | — | — | — | Yes | View |
| 14 |  BacklinkManager.app | 5.0 | RecognisedAPIDocumented | — | — | — | Yes | View |
| 15 | LinkSwapy | 5.0 | RecognisedAPIDocumented | — | No | 49 /mo | Yes | View |
| 16 | Outlink AI | 5.0 | RecognisedAPIDocumented | — | No | 88 /mo | Yes | View |
| 17 |  ScrapeBox | 5.0 | RecognisedAPIDocumented | $197/mo | No | — | — | View |
| 18 | Sightivo | 5.0 | RecognisedAPIDocumented | — | No | 89 /mo | Yes | View |
| 19 |  Uprankly LinkBuilderPro | 5.0 | RecognisedAPIDocumented | — | No | — | Yes | View |
| 20 | Linkee | 4.9 | RecognisedAPIDocumented | — | No | 80.83 /mo | Yes | View |
| 21 |  Linkomatic | 4.9 | RecognisedAPIDocumented | — | — | — | Yes | View |
| 22 |  ontolo | 4.9 | RecognisedAPIDocumented | — | No | 97 /mo | Yes | View |
| 23 | Orkap | 4.9 | RecognisedAPIDocumented | — | No | — | No | View |
| 24 |  SEO Buddy Link Building Campaign | 4.9 | RecognisedAPIDocumented | — | No | — | Yes | View |
| 25 | Postifluence | 4.8 | RecognisedAPIDocumented | — | No | — | Yes | View |
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which link building software is ranked first on Inferse?
GuestPostCRM is ranked #1 of 26 with a score of 7.4. Authoritas Link Building is second and ColdSEO third.
How many of these have a free plan?
3 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, JustReachOut has the lowest first paid tier we found: $8.17/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it. Paid placements never change a rank.