Life & fun · alternatives · 2026

24 alternatives to Rubrol – Sub-10ms PDF engine using Typst instead of Headless Chrome

Sub-10ms dynamic PDF/A engine replacing Puppeteer, Headless Chrome, and Gotenberg. Compile B2B SaaS invoices, receipts, and turnkey EU Factur-X / ZUGFeRD 2.2 documents in <6ms on <18MB RAM.

Rubrol is a PDF generation engine that compiles documents in under 10 milliseconds using Typst instead of Headless Chrome or similar tools. It targets B2B SaaS companies needing to generate invoices, receipts, and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
Ready-to-use API to convert any web page to PDF using headless Chrome▲129
Loads a web page in headless Chrome using Puppeteer and prints it to PDF. The input is a JSON object and output is a PDF file.
2017 · apify.com · its alternatives →
2
Pdf-Bot, an API/CLI for Generating PDFs Using Headless Chrome▲235
🤖 A Node queue API for generating PDFs using headless Chrome. Comes with a CLI, S3 storage and webhooks for notifying subscribers about generated PDFs - esbenp/pdf-bot
2017 · github.com · its alternatives →
3
Doppio▲155
HTML to PDF/image API
2023 · doppio.sh · its alternatives →
4
Walrus – a Kafka alternative written in Rust▲160
🦭 Distributed log streaming engine built from first principles - nubskr/walrus
Dec 2025 · github.com · its alternatives →
5
PDFMonkey▲164
Automate your PDF generation, get the job done
2023 · its alternatives →
6
TinyPDF – 3kb pdf library (70x smaller than jsPDF)▲253
I needed to generate invoices in a Node.js app. jsPDF is 229KB. I only needed text, rectangles, lines, and JPEG images. So I wrote tinypdf: <400 lines of TypeScript, zero dependencies, 3.3KB minified+gzipped. What it does: - Text (Helvetica, colors, alignment) - Rectangles and lines - JPEG images - Multiple pages, custom sizes What it doesn't do: - Custom fonts, PNG/SVG, forms, encryption, HTML-to-PDF That's it. The 95% use case for invoices, receipts, reports, tickets, and labels. GitHub: https://github.com/Lulzx/tinypdf npm: npm install tinypdf
Dec 2025 · github.com · its alternatives →
7
SaaS template/boilerplate w SvelteKit, Tailwind, Supabase and Postgres▲38
Hi HN, Releasing a new SaaS template/boilerplate built with SvelteKit, Tailwind, Supabase & Postgres. It’s called SaasStarter.work - MIT Open Source: https://github.com/CriticalMoments/CMSaasStarter - Feature Rich: user auth, user dashboard, marketing site, billing/subscriptions, pricing page, blog engine, and more - Very fast: perfect PageSpeed scores, achieved with pre-rendering and pre-compiling. - Extensible: all the tools you need to make additional marketing pages, UI components, admin portals, database backends, API endpoints, etc. - Hosting: Free to…
2024 · saasstarter.work · its alternatives →
8
I built 184 free browser tools – PDF, image, dev, AI tasks, no upload▲89
500+ browser tools — your files never get uploaded
Jun 2026 · brevio.pro · its alternatives →
9
I Built a SasS Using Vapor and Puppeteer▲12
Easily generate high quality PDF documents from HTML or templates. Fast, scalable and privacy focused PDF generation API.
2020 · docamatic.com · its alternatives →
10TA
ThePDFApi, a Chrome Based PDF Generation API Hosted on AWS▲41
Hello HN! It kept surprising me how much of a hassle it is to generate a PDF with decent HTML5 rendering from my SaaS apps. I tried several free libs and APIs but ended up with botched rendering a lot of times. So I set out to simplify this chore by creating an AWS hosted HTML to PDF conversion API that's based on Chrome. This API will allow a dev to just send the HTML to our API and get a PDF in response without having to worry about running and managing Chrome somewhere in their infra. I just finished the first version of my landing page and hosted pdf generation API…
2018 · its alternatives →
11
Tantivy▲68
A full-text, horse-speed search engine library in Rust
2022 · github.com · its alternatives →
12
Rudoc – a 4.5MB Rust document converter▲17
I built Rudoc because I wanted a smaller tool for simple file convertion workflow. (Pandoc was so heavy for me) I once wanted to try Pandoc, but after I downloaded it from GitHub, I found that it is around 70 MB. It also needed a lot of dependencies. Rudoc is not a substitue of Pandoc, it supports limited set of formats (only txt, md, html, typ, docx, pdf, pptx, xml, json) and doesn't support advanced formatting. The most common workflow is just turn a markdown file to a html. PDF generation can work without Typst, but PDF input conversion requires Typst as a backend. It has no other runtime…
Jul 2026 · github.com · its alternatives →
13
PDF Monster▲5
Free PDF tools with German servers. No signup needed.
Mar 2026 · pdfmonster.de · its alternatives →
14P1
Pdf2md – 10MB Rust PDF-to-Markdown Tool with a Free API▲10
May 2026 · pdf2md.deepdiy.net · its alternatives →
15
SuperFast▲19
Think launching a SaaS takes months? Not anymore. Meet SuperFast — the all-in-one Next.js boilerplate that cuts 90% of the setup time so you can go from idea to live product in days. No more wasting time on setup. SuperFast comes with everything you need: - Authentication - Payments - Database integration - Auto-generated legal docs powered by AI The problem? Most builders get stuck setting things up. The solution? SuperFast handles the boring parts so you can focus on building, launching, and earning fast. Why wait? Start shipping your SaaS today, not someday. Let’s build smarter.
2025 · superfa.st · its alternatives →
16
finisma▲6
Free PDF → ZUGFeRD converter for the 2027 EU e-invoice law
Jun 2026 · its alternatives →
17
ThePDFNinja▲4
100% free PDF converter & editor. No sign-up required.
Jun 2026 · thepdfninja.com · its alternatives →
18T5
TensorBase: 5x~10000x Faster Drop-In/Accelerator for ClickHouse in Rust▲19
2021 · tensorbase.io · its alternatives →
19
Pullpu.sh▲17
Bun / Elysia / Angular & MongoDB
2024 · its alternatives →
20
Free Supabase Next.js SaaS Template▲13
Launch your SaaS template in 10 minutes and focus on meat
2025 · basicsass.razikus.com · its alternatives →
21
PDF2MD – Rust+Redis+ClickHouse+VLLM conversion pipeline for PDFs▲13
If you just want to use it, try here - https://pdf2md.trieve.ai . I think the LLM's are astoundingly good at converting complex powerpoint style infographics. I wouldn't normally think folks on HN would find this interesting as the general concept has been posted about already in the past few months. We were heavily inspired by Zerox[1]. However, the stack we went with was fun and over-engineered which is more likely to create interesting discussion. We use all the same tools at Trieve (our main product), but wanted to see if they would be a good fit for something that needed to…
2024 · github.com · its alternatives →
22
Rotel – Fast and Efficient OpenTelemetry Collection in Rust▲9
Project Page: https://rotel.dev Github: https://github.com/streamfold/rotel Hi HN, Ray and Mike here! We’re building Rotel, a new high performance, resource efficient approach to OpenTelemetry collection. Rotel is open source (Apache License 2.0) and runs as a standalone process and collects telemetry from external processes or other collection agents. It consumes 75% less memory and 50% less CPU in benchmarks https://streamfold.github.io/rotel-otel-loadtests/benchmarks, so it is particularly well-suited for environments where resource…
2025 · rotel.dev · its alternatives →
23
Django Invoice Generator Pro▲7
A full stack Django template to generate branded PDF invoice
2025 · nephycodes.gumroad.com · its alternatives →
24
HeadlessTesting▲4
Chrome as a Service - Generate Screenshots and PDFs
2020 · testingbot.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →