Top 7 Whistle Competitors & Alternatives in 2025
Updated onFind more companies/brands/products like Whistle. We've shortlisted leading alternatives and mapped their strengths, pricing, and go-to-market focus.
Whistle
An open-source, privacy-first web app for P2P end-to-end encrypted tips and whistleblowing that streams encrypted files over WebRTC with an on-chain Solana Memo proof of existence.
Starts at $0
Competitors
#1Est. 2013 • 2-10 employeesSecureDrop
Best for SMBsSecureDrop is an open-source whistleblower submission system that media organizations and NGOs can install to securely accept documents from anonymous sources.
Starts at $0
#2Est. 2010 • 2-10 employeesGlobaLeaks
Best for enterprisesFree, open-source software that enables organizations to set up secure, anonymous whistleblowing platforms.
Starts at $0
#3Est. 2014 • 2-10 employeesOnionShare
Best for power usersOnionShare is an open-source tool that lets you securely and anonymously share files, host websites, and chat using the Tor network.
Starts at $0
#4Est. 2013 • 2-10 employeesPubleaks
Best for consumersPubleaks is a Dutch nonprofit foundation that provides a secure, anonymous platform for whistleblowers to share information and documents with journalists and media organizations.
Starts at $0
Est. 2025 • 1 employeeChampSignal
Best for SMBsGet the insights your competitors don't want you to have. ChampSignal tracks your competitors' websites, social mentions, ads, and SEO, and sends you email alerts only when it matters.
Starts at $39 / month
Has a free trial
#5Est. 2015 • 11-50 employeesWhispli
Best for enterprisesWhispli is a secure, anonymous whistleblowing and case-management platform that enables two-way, confidential reporting and case management for organizations.
Starts at $396 / per instance / month
#6Est. 2017 • 51-200 employeesAztec Network
Best for SMBsA privacy-first Layer 2 (zk-rollup) on Ethereum that provides programmable, end-to-end privacy for dApps using client-side proofs and the Noir DSL.
#7Est. 1821 • 1k+ employeesThe Guardian
Best for consumersBritish-based global news organisation offering free online journalism funded mainly by reader contributions and published by Guardian Media Group.
Starts at $0
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