Harju maakond, Kuusalu vald, Pudisoo küla, Männimäe/1, 74626, Estonia
contact@collabios.com
© 2026 Collabios - The easiest way for brands to hire verified influencers.
Harju maakond, Kuusalu vald, Pudisoo küla, Männimäe/1, 74626, Estonia
contact@collabios.com
© 2026 Collabios - The easiest way for brands to hire verified influencers.
Free influencer marketing tools grouped by job: calculators (engagement rate, influencer rate, EU VAT), templates (influencer contract, invoice, disclosure), and compliance audits (Loi 2023-451 in France, AGCom Codice di Condotta in Italy). Built for UK creators benchmarking their own performance and rates, and for worldwide brand teams auditing campaigns before they ship. No signup. No watermark on the output.
Check if a creator’s engagement is healthy or suspicious.
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Estimate fair rates by platform, follower tier, and content type.
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Regulator-preferred ad disclosure for 13 EU countries.
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Country-aware influencer-marketing contract for 13 EU markets.
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Reverse-charge, B2B/B2C, cross-border — invoice note included.
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Audit your campaign against France's Loi 2023-451 before launch.
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Audit your Italy-targeted campaign against AGCOM's influencer code.
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Cross-border invoice with reverse-charge, in-kind value, and 2026 e-invoicing mentions.
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Most influencer marketing tools you'll find online are either paywalled SaaS dashboards (Modash, HypeAuditor, Klear) or thin listicle pages that link out to those same dashboards. Collabios runs the opposite stack: twelve free, no-signup tools that do the actual work — pricing a creator, calculating engagement, projecting audience growth, modelling TikTok Shop seller economics, quantifying earned media value, writing the disclosure, drafting the contract, generating the invoice, working out cross-border VAT, and auditing campaigns against the strictest EU regulators. Each tool is built on primary sources (Loi 2023-451, AGCom Delibera 197/25/CONS, ASA/CAP Code, the EU VAT Directive 2006/112/EC, TikTok Seller Center fee schedules, Influencer Marketing Hub EMV methodology) so the output is defensible in front of a regulator or a brand-side lawyer, not just a content marketer.
Free calculators replace the data-API portions of a typical SaaS stack. The influencer rate calculator turns follower count + platform + content type into a fair price band — useful for a UK creator drafting a first rate card and equally useful for a worldwide brand AP team sanity-checking an inbound invoice. The engagement rate calculator runs (likes + comments) / followers across Instagram, TikTok, YouTube, Facebook, LinkedIn and X with platform-specific 2026 benchmarks, plus a fake-follower verdict tuned to tier. The EU influencer VAT calculator handles intra-EU B2B reverse charge, OSS thresholds, and non-EU treatment in 27 jurisdictions — the part that breaks most accountancy spreadsheets.
Three US-targeted calculators round out the set: the TikTok Shop fee calculator models the 6% US referral fee plus creator commission per sale for US-side commerce campaigns, the audience calculator projects compound follower growth over 1-24 months (brand teams use it to project at-launch audience size when booking 1-2 months out; creators use it for rate-card refresh cadence), and the earned media value (EMV) calculator translates organic engagement into the paid-media-equivalent dollar value for board-level campaign reporting.
If you're a worldwide brand or agency running paid creator campaigns into the UK or the EU, the standard alternative to these free tools is paying an influencer marketing agency between GBP 5,000 and GBP 30,000 per campaign for what is effectively a discovery + vetting + contracting + reporting workflow.
The Collabios free tools cover the contracting + compliance + benchmarking + invoicing legs of that workflow at zero cost: use the rate calculator to budget the spend, use the engagement rate calculator to vet the creator shortlist before booking, use the EU disclosure generator to produce ASA-compliant disclosure copy per market, use the contract generator to issue the brief, use the VAT calculator to handle cross-border tax, and use the Loi Influenceurs + AGCom audits to confirm the campaign clears the strictest EU regulators.
When the campaign needs the human-marketplace leg (creator discovery, payment escrow, dispute mediation), Collabios runs that on a per-collaboration fee — no retainer, no agency commission, no monthly subscription. The free tools are the brand-side discovery surface; the paid marketplace is the brand-side execution surface.
For a deeper comparison of when a UK influencer marketing agency retainer pays back versus when a marketplace beats one, see the UK influencer marketing agency 2026 hub and the verified Top 8 UK agencies listicle.
The twelve Collabios tools cover the core stack: a rate calculator (for brand budgeting + creator pricing), an engagement rate calculator (for vetting before booking), an audience calculator (compound growth projections for booking + rate-card planning), an earned media value (EMV) calculator (for board-level campaign reporting), a TikTok Shop fee calculator (US seller commission math), an Instagram Reel thumbnail downloader (creator-vetting visual audits), an EU VAT calculator (cross-border tax handling), an influencer contract generator (13 EU jurisdictions), an influencer invoice generator (e-invoicing-2026-ready), an EU disclosure generator (ASA + CAP + CMA + per-country regulators), a Loi 2023-451 audit (campaigns into France), and an AGCom Codice di Condotta audit (campaigns into Italy). All free, no signup, no watermark.
Yes, every tool on this hub is free to use without an account. Outputs (contract PDFs, disclosure wording, calculator results) come without watermark. The funding model is the marketplace itself — brands and creators that find the tools useful often go on to use Collabios for verified hiring.
A typical brand-side workflow uses the rate calculator to budget the campaign, the engagement rate calculator to vet the creator shortlist (filtering for tier-appropriate engagement to detect fake followers), the EU disclosure generator to produce ASA / CAP / CMA-compliant disclosure copy per market, the contract generator to issue the brief, the VAT calculator to handle reverse charge on cross-border invoices, and the Loi Influenceurs and AGCom audits to confirm regulatory clearance. The Collabios marketplace then handles the discovery + payment + dispute legs on a per-collaboration fee instead of an agency retainer.
The disclosure generator and contract generator cover 13 European jurisdictions: France, Germany, Spain, Italy, Belgium, Portugal, Austria, Switzerland, Poland, Sweden, Netherlands, UK, and Ireland. The VAT calculator covers all 27 EU member states plus reverse-charge for non-EU customers. The Loi Influenceurs checker is France-specific. The AGCom Codice di Condotta audit is Italy-specific.
No. The tools surface the regulator-preferred wording, the mandatory contract clauses, and the legal citations so your team can move quickly — but every contract or campaign launching in a new market should be reviewed by qualified counsel in the target jurisdiction. Each tool exposes its sources so the underlying texts can be verified at the source.
Each tool shows an "Updated" date on its hero. The most volatile area — French rules — was last refreshed against Décret 2025-1137 (28 November 2025) and the November 2024 Ordonnance reshape of Loi 2023-451. The benchmark data on the rate and engagement calculators is recalibrated annually against published industry reports.
The useful AI surface is narrow — fake-follower detection (engagement-pattern + audience-overlap scoring), pricing benchmarking from public rate cards, and disclosure-wording generation per regulator. Collabios builds these into the free tools rather than charging for them. The hype surface — AI-generated content briefs, AI creator descriptions, AI campaign performance predictions — is mostly noise. Brand teams asking "which influencer marketing tool is most effective" should anchor on the boring jobs (compliance + contracts + invoicing + benchmarking) before paying for AI overlays.
Yes for occasional team use. For volume integration (e.g. running thousands of compliance checks via API, embedding the calculators in your own product), get in touch — the underlying datasets are proprietary and licensed separately. The standalone tool pages can be used freely without commercial restriction.
Skip the cold outreach. Collabios verifies every creator before they appear in search — country, niche, audience quality, and brand-safety profile.
Browse verified European creators →