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ConvertAPI VS mdstill

Compare ConvertAPI VS mdstill and see what are their differences

ConvertAPI

High-Performance File Conversion API

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Rating
0 reviews
Alternatives Is it good?
mdstill

Document-to-markdown preprocessor built for LLM and RAG workflows. Turn any document (PDF, Word, Excel, EPUB +20 formats) into clean, structure-preserving markdown ready for ChatGPT, Claude, Gemini, or your RAG pipeline.Includes REST API.Free to use

Rating
0 reviews
Pricing
Freemium Free trial
Alternatives Is it good?
HTMLCSS to Image API
Capture website screenshots, render HTML/CSS, or create templated graphics. Render images or PDFs. Use MCP with AI, no-code automation, or the REST API. No browsers needed. sponsored

Which is more popular?

API Tools popularity
100% vs 0%
alternatives listed
35 vs 6

Base details

Website, pricing, platforms and company facts side by side.

ConvertAPI
mdstill
Website convertapi.com mdstill.com
Pricing
Official pricing
Freemium Free trial Official pricing
Platforms —
Web REST API
Company — 2026
Listed in
API Tools File Converter PDF Conversion API Document Automation +1
Developer Tools Document Converter Markdown Editor Markdown Converter PDF Conversion API +2

About ConvertAPI and mdstill

In their own words, as submitted to SaaSHub.

ConvertAPI
mdstill

No description of ConvertAPI yet.

mdstill is a document-ingestion tool purpose-built for LLM and RAG workflows. Where generic converters dump messy text, mdstill outputs clean, semantic markdown that preserves tables, headings, and document structure — the things LLMs actually need to understand context. What you can do with it:...

Read more about mdstill

Features and specs

What each product offers, as listed by its team.

ConvertAPI 0 features
mdstill 7 features

No features have been listed yet.

  • Supported formats
    20+ (PDF, Word, Excel, PowerPoint, EPUB, HTML, CSV, JSON, Apple iWork)
  • Output format
    GitHub-flavored Markdown (GFM) with preserved tables, headers, structure
  • REST API
    Yes — for RAG pipelines and batch automation
  • Token efficiency
    ~40% fewer tokens than raw text extraction
  • Privacy
    Files deleted immediately after processing — no storage, no logging, no training
  • Pricing
    Free tier + Pro plans
  • LLM integrations
    ChatGPT, Claude, Gemini — output tuned for AI context windows

Analysis

An editorial look at what each product does well and who it suits.

ConvertAPI
mdstill

Overall verdict

  • ConvertAPI is a reliable and well-documented file conversion service that handles a wide range of formats with strong performance and solid developer support, making it a good choice for teams needing programmatic document processing.

Why this product is good

  • Supports a broad range of file conversions including PDF, Word, Excel, images, and web-to-PDF
  • Offers clean REST APIs with SDKs for popular languages like Python, PHP, Node.js, C#, and Java
  • Good documentation and straightforward integration reduce development time
  • Reliable uptime and reasonable processing speed for most conversion tasks
  • Flexible pricing with a free tier and pay-as-you-go options suitable for varying workloads
  • Provides additional PDF manipulation features such as merging, splitting, watermarking, and OCR

Recommended for

  • Developers building applications that require automated document conversion
  • SaaS platforms needing to offer file conversion features to their users
  • Businesses that process invoices, reports, or contracts in bulk
  • Teams handling web-to-PDF or HTML-to-document generation
  • Startups and enterprises looking for a scalable API-based conversion solution without maintaining their own infrastructure

Overall verdict

  • I don't have verified information about mdstill.com in my knowledge base, so I can't confirm its legitimacy, quality, or reputation. Before using this service, you should independently research it.

Why this product is good

  • No reliable data available on this specific domain to assess product quality or service reliability
  • Unable to verify company background, ownership, or business history
  • No access to user reviews, ratings, or third-party evaluations for this site
  • Cannot confirm security practices, payment safety, or customer support quality

Recommended for

  • Anyone considering this site should first check independent review platforms like Trustpilot or Better Business Bureau
  • Users should verify the site's SSL certificate, contact information, and return policy before purchasing
  • Consider checking domain age and registration details via WHOIS lookup tools
  • Look for verified customer reviews on social media or forums before making a decision

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
ConvertAPI
mdstill
100% 100%
API Tools
0% 0%
0% 0%
Markdown Editor
100% 100%
73% 73%
PDF Conversion API
27% 27%
100% 100%
Document Automation
0% 0%

Questions & Answers

As answered by people managing ConvertAPI and mdstill.

What makes your product unique?

mdstill's answer:

mdstill is built specifically for LLM and RAG workflows, not generic file conversion. Drop any of 20+ document formats (PDF, Word, Excel, PowerPoint, EPUB, and more) and get back clean, structure-preserving Markdown that's tuned for ChatGPT, Claude, Gemini context windows and vector-database ingestion. Tables stay intact, headers become linkable anchors, output is ~40% more token-efficient than raw text extraction. Free web tool + REST API — humans and pipelines use the same engine.

Why should a person choose your product over its competitors?

mdstill's answer:

Alternatives fall into two camps: developer libraries that require setup, or enterprise SDKs that require a sales call. mdstill fills the middle: open a browser, drop a file, get Markdown in seconds — and when you need to scale, the same conversion runs through a REST API. 20+ formats in one tool instead of picking a different parser per format. Tables survive the trip (most tools mangle them). Files are deleted immediately after processing. Free tier, no credit card, no signup for basic use.

How would you describe the primary audience of your product?

mdstill's answer:

Two overlapping groups. Developers building AI features — engineers feeding documents into ChatGPT, Claude, or Gemini APIs; teams building RAG pipelines and AI agents who need reliable document ingestion. Knowledge workers and researchers — Obsidian and Notion users importing legacy PDFs, students preparing papers for AI analysis, analysts converting spreadsheets for LLM review. Common thread: anyone who's discovered that pasting raw PDF text into an LLM loses tables and wastes tokens.

What's the story behind your product?

mdstill's answer:

mdstill started from a personal frustration: feeding documents into ChatGPT and Claude meant pasting messy PDF text with broken tables and lost structure, or paying for heavyweight enterprise tools just to preprocess a few files. The fix seemed obvious — Markdown is what LLMs understand best, so the conversion should be a utility anyone can use, not a product you buy. mdstill was built to make high-quality document-to-Markdown preprocessing free and instant for everyone, with an API for teams who need to scale.

Who are some of the biggest customers of your product?

mdstill's answer:

mdstill launched publicly in April 2026 and is in the early-adopter phase. Currently used by individual developers, indie AI-tool builders, and small research teams — customer logos will be added as early adopters opt in to share them.

Which are the primary technologies used for building your product?

mdstill's answer:

Python + FastAPI on the backend, Next.js + TypeScript on the frontend.

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

ConvertAPI no reviews yet
mdstill no reviews yet
  • 14 Best PDF APIs for Every Business Need
    geekflare.com · Nov 2023

    Do you often need to merge multiple smaller PDF files to create a consolidated PDF file? ConvertAPI makes this process easier for developers by helping them combine multiple PDF files into one document. As you use...

We have no reviews of mdstill yet. Be the first one to post

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