How does SorteiGram pick a winner from Instagram comments?

SorteiGram uses a SHA-256 cryptographic hash combined with Fisher-Yates shuffle to randomly select a winner from all eligible comments. Anyone can audit the result with the public hash and seed.

Yes. SorteiGram is free for posts with up to 100 comments. For larger posts, the standard plan is $8.90 (R$24.90 in Brazil) and the premium plan with cinematic reveal is $19.90 (R$49.90 in Brazil).

Which platforms does SorteiGram support?

Instagram, YouTube, TikTok, Twitter/X, Facebook, Kwai, Threads, Telegram and WhatsApp giveaways are all supported.

What languages does SorteiGram support?

12 languages: Portuguese, English, Spanish, French, German, Italian, Turkish, Arabic, Hindi, Indonesian, Japanese and Korean.

Can the giveaway result be audited?

Yes. Every draw publishes a SHA-256 hash before revealing the winner and a seed after. Anyone can re-run the algorithm to verify the result was not manipulated.

How does SorteiGram detect fake accounts and bots?

An AI model analyzes comment patterns, account age, follower ratios, and engagement signals to flag fake accounts and bot entries before the draw.

Can I require participants to mention friends or follow my profile?

Yes. SorteiGram has eligibility filters: require mention of N friends, require specific hashtag, require follow.

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Instagram Giveaway Picker for Japan

The most trusted free tool to pick a random winner from your Instagram giveaway in Japan. Provably fair SHA-256, no registration, works in JPY.

Pick Winner Now (Free)

100% Free up to 100 comments

Try unlimited times in Japan.

Provably Fair SHA-256

Every result is auditable by anyone.

Multi-platform

Instagram, YouTube, TikTok, Twitter, Facebook, Kwai, Threads.

AI Anti-Fraud

Detects fake accounts, bots, duplicates.

Pay in JPY

Local currency via card or Google Pay.

12 Languages

Including English, Spanish, Portuguese, Arabic, Hindi.

How to pick a winner from Instagram in Japan

1. Paste the URL of your Instagram post on SorteiGram.
2. Wait for comments to load automatically (free for posts up to 100 comments).
3. Set your giveaway rules: number of winners, mention requirements, hashtag, follow.
4. Click Draw. SorteiGram generates a SHA-256 hash, applies Fisher-Yates shuffle and reveals the winner.
5. Share the verification URL so anyone in Japan can audit your draw.

Frequently asked questions (Japan)

Is SorteiGram free for Japan users?▼

Yes. SorteiGram is free for any Instagram post with up to 100 comments, regardless of country. Japan users can run unlimited free draws.

Does SorteiGram support payments in JPY?▼

Yes. We accept JPY via credit card, debit card and Google Pay. PIX is available exclusively for Brazil.

Is the giveaway result auditable?▼

Every draw publishes a SHA-256 hash before the winner is revealed and the seed after. Anyone in Japan or worldwide can re-run the algorithm to verify the result.

Can I use SorteiGram for Japan influencer giveaways?▼

Absolutely. Influencers, brands and small businesses in Japan use SorteiGram to pick verifiable winners from Instagram, YouTube, TikTok, Twitter, Facebook, Kwai, Threads.

Do I need to create an account?▼

No. SorteiGram works with no registration in Japan and worldwide.

Ready to pick your Japan winner?

100% free for up to 100 comments. No signup. Provably fair.

Start Free Giveaway