The Provably Fair Giveaway Platform
Fair Giveaways is a comment picker and giveaway tool that uses cryptographic verification to ensure every winner is selected randomly and transparently - across Instagram, YouTube, Facebook, and custom giveaways.
Why We Built This
Running giveaways is one of the most effective ways to grow your audience and reward your community. But most giveaway tools are clunky, opaque, and give creators no way to prove the results are legitimate - leaving both them and their audience without confidence in the outcome.
We built Fair Giveaways to give creators a tool that actually works: automatic comment fetching, configurable entry rules, multi-platform support, and a streamlined dashboard to manage everything. And on top of that, every giveaway comes with cryptographic proof that the winner selection was truly random - giving your audience a reason to trust the process and participate again.
By committing a SHA-256 hash before entries close and revealing the seed after winners are selected, we make the fairness verifiable by anyone. At the moment of drawing, we also capture external, unpredictable data from the NIST Randomness Beacon and the latest Bitcoin block hash to further strengthen the randomness - ensuring the outcome cannot be predicted or manipulated even in theory. It's not about questioning your integrity - it's about giving you a tool that lets your reputation speak with mathematical proof.
Supported Platforms & Giveaway Types
Instagram Comment Picker
Connect your Instagram Business or Creator account and run giveaways based on post comments. Our system automatically fetches comments through the Instagram API, validates entry requirements (tags, keywords, follows), and picks winners using provably fair selection.
Learn more →YouTube Comment Picker
Connect your YouTube channel and pick random winners from video comments. Set requirements like subscriptions, keywords, or likes. All comments are fetched automatically through the YouTube Data API.
Learn more →Facebook Comment Picker
Connect your Facebook Page and run giveaways on page posts. Comments and reactions are fetched through the Graph API. Set custom entry requirements and pick verifiable winners.
Learn more →Custom Giveaways
Run provably fair giveaways without social media. Create a hosted entry page that collects verified emails, bulk import participants from a CSV or spreadsheet, or integrate with your own platform via our API.
Get started →What Makes Us Different
Provably Fair Selection
We combine a pre-committed SHA-256 seed with real-time public entropy from the NIST Randomness Beacon and a live Bitcoin block hash at draw time. The selection is fully deterministic - given the same inputs, anyone can reproduce the exact result.
Publicly Verifiable
Every completed giveaway has a public verification certificate. Participants can independently verify the hash, the seed, and the selection algorithm to confirm they had a fair chance.
Entry Validation
Comments are automatically checked for tag requirements, keyword matches, and duplicate entries. Invalid entries are filtered out before the selection process.
Transparency Reports
Every giveaway publishes a detailed report: total entries received, entries blocked and why, winner selection details, and the full cryptographic trail.
Platform Exposure
All public giveaways are showcased on our browse page, exposing your content to users actively looking for giveaways. Free organic reach for your brand.
Winner Notifications
Creators receive email alerts about giveaway progress, completion, and winner details. For custom giveaways, winners also receive notification emails.
Public Giveaway Directory
Every giveaway on Fair Giveaways gets its own public page - and all active giveaways are showcased in our browsable directory.
Browse & Filter
Users can browse all active and completed giveaways, filtering by platform, status, and more. Your giveaway gets organic exposure to an engaged audience actively searching for contests.
Deadlines & Countdown
Every giveaway prominently displays its end date. Participants see exactly how long they have to enter - creating urgency and driving engagement on your post.
Transparent Reports
Completed giveaways show a full transparency report: eligible entries, blocked entries with reasons, winner selection details, and the full cryptographic verification trail.
Creator Profiles
Every creator gets a public profile page showcasing their giveaway history. Build credibility with a visible track record of fair, completed giveaways.
Shareable Giveaway Pages
Each giveaway has a clean, shareable URL with full Open Graph metadata. Share your giveaway link anywhere and it'll show a rich preview with thumbnail, title, and status.
Winner Announcements
Generate shareable winner announcement images directly from the platform. Perfect for posting results back to your social media channels.
How Provably Fair Selection Works
Commitment
When a giveaway is created, we generate a random secret seed and publish its SHA-256 hash. This hash is a one-way digital fingerprint - it's easy to verify that a seed produces a hash, but impossible to reverse-engineer a seed from its hash.
Collection
Entries are collected: comments from social media APIs, emails from our hosted forms, or participants from bulk imports. Each valid entry is indexed and recorded.
Public Entropy Capture
At the exact moment of the draw, we fetch two external sources of unpredictable public randomness: the NIST Randomness Beacon (a US federal standard for cryptographic randomness) and the latest Bitcoin block hash. These are completely outside our control and impossible to predict in advance.
Reveal & Selection
The secret seed is revealed and combined with the participant data and any captured public entropy. Each participant's unique random value is derived from this combined input. Winners are the participants with the highest random values. Anyone can run the same algorithm with the same inputs and reproduce the result exactly.
Under the Hood
Our algorithm is built on SHA-256 (the same technology securing Bitcoin and online banking) and is further strengthened by two external public entropy sources captured at draw time. Every giveaway result can be independently verified by anyone using our open verification tool.
Start Your First Giveaway
Free to start. Fair by design.