🎲 Provably Fair Giveaway Platform

Giveaway Picker

Pick random giveaway winners from Instagram, YouTube, and Facebook comments, or host custom email and CSV drawsβ€”backed by SHA-256 cryptographic proof.

πŸ”’ SHA-256 Cryptographic Proof 🌐 Multi-Platform Support ⚑ 1 to 100 Winners πŸ’³ Free Tier (Up to 500 Entries)

How Fair Giveaways Works

A simple 4-step workflow that delivers 100% verifiable randomness

1

Choose Method & Connect

Select Instagram, YouTube, Facebook, or Custom Giveaways. Authenticate securely with read-only API permissions or upload your participant list.

2

Configure Rules

Set winner count (1–100), friend tagging rules, keyword requirements, entry limits, and geographic eligibility criteria.

3

Seed Hash Commitment

Before entries close, our server generates a secret seed and publishes its SHA-256 hash. This fixes the winner selection formula in advance.

4

Draw & Verify

The seed is revealed, the draw executes deterministically, and a permanent public certificate is issued for anyone to verify.

Versatile Formats

Custom Giveaways: Beyond Social Comments

Need to pick winners without an Instagram, YouTube, or Facebook post? Fair Giveaways provides robust tools for non-social and multi-channel campaigns:

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Hosted Email Entry Landing Pages: Create a branded giveaway page where your audience enters directly using their email address.
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Bulk CSV Participant Import: Upload spreadsheets of participant names, customer order IDs, or attendee lists to pick random winners.
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REST API Integration: Submit entries programmatically from your own mobile app, ecommerce store, or web application.
Provably Fair

The Math Behind Provably Fair Random Selection

In online contests, participants frequently doubt whether winners were chosen randomly or selected via favoritism. Fair Giveaways eliminates this doubt using modern cryptography:

  • Cryptographic Commitment: We commit to a secret seed by publishing its SHA-256 hash before entries close. We cannot alter the seed without changing the hash.
  • Deterministic PRNG: After entries close, the seed is revealed. The algorithm combines the seed with participant identifiers to calculate winner positions.
  • Open Verification: Anyone can use our browser-based Verification Tool to re-run the algorithm locally and confirm the winner matches 100%.
Universal Verification Report
Committed Seed Hash: 9f83c21a4e0...
Revealed Secret Seed: fair_giveaway_seed_...
Verification Method: Browser Web Crypto SHA-256
βœ“ 100% Cryptographically Verified

Giveaway Capacity & Plan Options

Free for standard giveaways, with flexible passes and plans for viral campaigns

Free Forever

Free Tier

Up to 500 entries

Ideal for small community draws across all supported platforms.

  • βœ“ Up to 500 comments or entries
  • βœ“ 1 active giveaway at a time
  • βœ“ 1 to 100 winners
  • βœ“ All platform integrations
  • βœ“ SHA-256 cryptographic verification
  • βœ“ Public verification certificate
Start Free Giveaway
High Volume

Pro Tier

Unlimited entries
Single giveaway pass or monthly plan

Built for marketing agencies and brands managing large-scale giveaways.

  • βœ“ Unlimited comments and entries
  • βœ“ Unlimited giveaways
  • βœ“ Full REST API access & bulk CSV imports
  • βœ“ All Creator plan features included
  • βœ“ Priority support
View Pricing & Plans

Frequently Asked Questions

Everything you need to know about the Fair Giveaways platform

What is a provably fair giveaway picker?

A provably fair giveaway picker uses cryptographic commitment schemes (built on SHA-256 hashing) to mathematically guarantee that winner selection cannot be manipulated. Before any entries close, our server publishes a cryptographic hash of a secret random seed. After the giveaway ends, the secret seed is revealed. Anyone can enter the giveaway data into our independent browser verification tool to prove that the exact winners were selected mathematically without bias.

Which platforms and giveaway formats are supported?

Fair Giveaways supports: 1) Instagram (comments on posts from Professional accounts), 2) YouTube (comments on public videos), 3) Facebook (comments on Facebook Page posts), and 4) Custom Giveaways (hosted web entry pages collecting emails, bulk CSV uploads, or REST API submissions). All giveaway types share the same provably fair cryptographic verification.

What are Custom Giveaways and when should I use them?

Custom Giveaways are ideal when you want to run a giveaway without tying it to a social media comment section. You can: 1) use our hosted public entry landing page where participants enter by email, 2) bulk import an existing participant list from a CSV file (e.g. from an in-store raffle, Discord, or newsletter), or 3) programmatically send entries via our REST API. Custom Giveaways generate the same cryptographic certificates and public verification reports.

Is Fair Giveaways free to use?

Yes! Our free plan allows up to 500 comments or entries per giveaway across all platforms with 1 active giveaway at a time. It includes complete SHA-256 cryptographic verification and public audit certificates. For larger giveaways, you can purchase single giveaway passes or subscribe to Creator or Pro monthly plans.

Can I select multiple winners in a single giveaway?

Yes. You can configure between 1 and 100 winners per draw. Every winner is selected independently using the provably fair PRNG algorithm with equal odds across all eligible participants.

How does Fair Giveaways prevent duplicate entries?

You have full control over entry limits. In social comment giveaways, you can choose whether multiple comments count as extra entries or enforce 1 entry per username. On premium plans, you can also specify an exact 'Maximum entries per user' cap.

How can participants verify the giveaway results?

Every completed giveaway receives a permanent public verification report and certificate. Entrants can click the verification link or copy the giveaway ID into our open Independent Verification Tool (/verification-tool.html) which recalculates the mathematical outcome directly in their web browser.

Can I export participant and winner records?

Yes. Creator and Pro tier users can download complete CSV exports of all entries and winner details for CRM tracking, marketing analysis, and compliance records.

Ready to Run a Provably Fair Giveaway?

Choose your platform or custom format and launch in under 2 minutes. Free tier includes up to 500 entries with cryptographic proof.

Get Started Free

No credit card required β€’ 100% Provably Fair β€’ Instant Verification