Formix PDF
Form Filling
Transform PDFs into editable forms instantly
Like Instafill, Formix PDF is in the Form Filling category. Both are freemium. Worth comparing on the detail page.
We've curated 47 of the best alternatives to Instafill, ranked by feature overlap, topic similarity, user ratings, and popularity. Formix PDF, FillBot, and Fill Genius lead the list as the closest matches.
Updated May 18, 2026
The list includes 2 free alternatives, 43 freemium, 1 paid, and 1 with a free trial, so whether you're looking for a no-cost replacement or a more capable paid tier, there's an option to compare. Instafill itself is freemium, which makes freemium alternatives the most natural starting point.
Many of these tools cluster around use cases like Automation, Ai Powered, Free + From $19.99/mo, and Api — the same problem spaces Instafill addresses. Cross-referencing tools that overlap on multiple topics gives a more reliable signal than category alone, because two products in the same category can still serve very different workflows.
Our ranking weighs eight signals: shared category, topic overlap, feature overlap, name and description text similarity (via PostgreSQL's pg_trgm and tsvector), Bayesian-smoothed user ratings, pricing-model match, popularity, and editorial overrides. Scores are then normalized within each tool's own candidate pool so the top match always represents the strongest available alternative.
Use the table of contents below to jump to free or paid alternatives, or scroll down to compare each option side-by-side with Instafill.
Ranked by compatibility score
Form Filling
Transform PDFs into editable forms instantly
Like Instafill, Formix PDF is in the Form Filling category. Both are freemium. Worth comparing on the detail page.
Form Filling
AI-powered form filling automation for any website.
Like Instafill, FillBot is in the Form Filling category. FillBot is free-trial, while Instafill is freemium. Worth comparing on the detail page.
2 free and 43 freemium options.
1 paid option.
1 paid alternative to Instafill on /tools/instafill/alternatives.
23 additional candidates
Formix PDF ranks as the highest-scoring alternative to Instafill, based on shared category, topic overlap, feature similarity, and user ratings. Ratings are still being collected for this tool.
Yes — 2 fully free and 43 freemium alternatives are available, including Formix PDF, Ai Form Filler, and Autofillr.
Formix PDF is similarly priced (freemium) and sits in the same category (Form Filling). View its detail page to compare features, integrations, and reviews side-by-side.
Top Form Filling alternatives include Formix PDF, FillBot, Fill Genius, and Ai Form Filler. These tools share the same primary category and have meaningful topic overlap with Instafill.
Form Filling
Auto-fill forms with AI in one click.
Like Instafill, Fill Genius is in the Form Filling category. Fill Genius is paid, while Instafill is freemium. Worth comparing on the detail page.
Form Filling
Automatically fill forms with AI-generated realistic data.
Like Instafill, Ai Form Filler is in the Form Filling category. Ai Form Filler is free, while Instafill is freemium. Worth comparing on the detail page.
Form Filling
AI-powered form autofill for flawless, swift entry.
Like Instafill, Autofillr is in the Form Filling category. Autofillr is free, while Instafill is freemium. Worth comparing on the detail page.
Task Automation
Automate your work with ChatGPT and 6,000+ apps.
Zapier shares 3 topics with Instafill: Free + From $19.99/mo, Ai Powered, and Automation. Both are freemium.
Text Summarization
Summarize any text or PDF in seconds
UpSum shares 2 topics with Instafill: Free + From $19.99/mo and Ai Powered. Both are freemium.
Coding
Turn GitHub issues into code changes instantly.
Sweep.dev shares 2 topics with Instafill: Ai Powered and Automation. Both are freemium.
Job Applications
Apply to jobs at the speed of AI
AutoApplyAI shares 2 topics with Instafill: Free + From $19.99/mo and Automation. Both are freemium.
Chatbots
Build AI chatbots without coding
Chatbot App shares 2 topics with Instafill: Free + From $19.99/mo and Automation. Both are freemium.
Task Management
AI-powered tool for streamlined productivity
OpenCraftAI shares 2 topics with Instafill: Ai Powered and Automation. Both are freemium.
Emotional Support
AI companion for self-compassion and emotional balance.
Murror shares 2 topics with Instafill: Free + From $19.99/mo and Ai Powered. Both are freemium.
Landscape Design
Visualize your dream landscape with AI.
Yard Vision shares 1 topic with Instafill: Free + From $19.99/mo. Both are freemium.
Youtube Shorts
A video editing suite for gaming streamers.
Eklipse shares 1 topic with Instafill: Free + From $19.99/mo. Both are freemium.
Newsletters
Automated creation of engaging newsletters.
Newsletter Pilot shares 1 topic with Instafill: Automation. Both are freemium.
Large Language Models
Building reliable, interpretable AI systems
Claude shares 1 topic with Instafill: Automation. Both are freemium.
Customer Engagement
Deliver personalized AI experiences for better customer engagement
LivePerson shares 1 topic with Instafill: Automation. Both are freemium.
Gift Ideas
Automated, personalized global corporate gifting.
Giftpack AI shares 1 topic with Instafill: Automation. Both are freemium.
Images
Magical AI tools for stunning image creation
Getimg.ai shares 1 topic with Instafill: Ai Powered. Both are freemium.
Model Generation
Run Data Science with one click
Obviously AI shares 1 topic with Instafill: Automation. Both are freemium.
Excel Formulas
Transcribe speech with AI precision.
Whisper shares 1 topic with Instafill: Automation. Both are freemium.
Game Assets
Generate pixel-perfect game assets instantly in your style.
Layer AI shares 1 topic with Instafill: Automation. Both are freemium.
Social Media Management
Supercharge your social media growth
Storefries shares 1 topic with Instafill: Automation. Both are freemium.
Sql Queries
Query data in plain English, no coding required.
Findly shares 1 topic with Instafill: Ai Powered. Both are freemium.
39 more free/freemium alternatives listed below. Browse all Instafill alternatives ↓
45 free or freemium alternatives to Instafill on /tools/instafill/alternatives.
BulkGPT shares 1 topic with Instafill: Automation. Both are freemium.
RE:Create Video shares 1 topic with Instafill: Ai Powered. Both are freemium.
Neither Instafill nor Formix PDF has user ratings yet — be the first to review either tool to help future visitors compare them.
