Life & fun · alternatives · 2026
24 alternatives to Kiln – a fast, native batch image processor
I was tired of outdated UIs and performance of similar tools. Nor did I want to write ImageMagick scripts every time I needed to resize/convert/watermark a folder with a few thousand images. It's a native desktop app built with C++23, Skia for rendering, libvips for image processing and my own cross-platform UI toolkit - no Electron/Qt. It allows building reusable pipelines: resize, convert, compress, watermark, sharpen, blur, rotate, flip, rename, and metadata (EXIF/IPTC/XMP) editing, chained in any order and saved for reuse. Batches run in parallel. Everything is…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Hi, I'm a developer and first time i shipped the real product after observing the startups and indie hackers community for years. I had made so many useless apps [you should check my website https://ansh.life], but this time I built a very useful product that has a number of super easy-to-use tools in one app for video, music, and photo files. Users can compress, convert, resize, and do so much more with easy-to-use tools. Background: I developed a frame-by-frame video cropper to upload cropped landscape videos to Instagram Reels. However, it required FFmpeg, and as a noob video…
2025 · pimosa.app · its alternatives →
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ImageKit.io▲328Real-time image resizing, optimization & super-fast delivery
2017 · imagekit.io · its alternatives →
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- 5KT
Hey HN! Tired of hitting "Sign up for free" buttons only to discover the real limitations after creating an account? Or finding a "free" tool that adds watermarks to everything? Yeah, me too. I'm building kis.tools, a curated directory of tools that: Work instantly - registration only when technically necessary, have genuine free functionality, keep interfaces clean and focused, process data locally when possible, keep promotional messages or ads minimal and unobtrusive Think of it as a home for tools like Eric Meyer's Color Blender (running since 2003!) - tools that do one thing, do it…
2024 · kis.tools · its alternatives →
- 6AL
Hi HN - this is a little side project I threw together. Some implementation details: image processing is all done with headless GIMP (running inside a Docker container) through its built-in Python API. It's _very_ slow (about 50 seconds/image), and currently it processes exactly one image at a time. The website is built with NextJS; payments are processed by Stripe. I've had the best results with pictures of houses, although certain photos of people or nature can look neat, too. (For example: https://brushify.art/s/ruYmQWk, original photo from…
2022 · brushify.art · its alternatives →
- 7
Watermark, resize, optimize and convert images on Mac
2017 · apps.apple.com · its alternatives →
- 8
I noticed there weren't boilerplates for AI projects like there were for web apps, so I built one. Same idea - everything you need to get a project up and running quickly. However, instead of web-framework/CSS/DB, it's tools for AI projects: evals, synthetic data gen, fine-tuning, and more. Kiln is a free, open tool that gives you everything most AI projects need in one integrated package: - Eval system: including LLM-as-judge evals, eval data generation, human baselines - Fine-tuning: proxy to many fine-tuning providers like Fireworks/Together/OpenAI/Unsloth -…
2025 · github.com · its alternatives →
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Bulk image watermarking, run locally, at light speed
2023 · markmyimages.com · its alternatives →
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Picser 2.0▲127Native macOS image viewer with tags & slideshow
Dec 2025 · apps.apple.com · its alternatives →
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imagekit▲6A powerful, fast CLI tool for batch image processing.
2025 · github.com · its alternatives →
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Fast image IO and transformations. Contribute to RaphaelJ/friday development by creating an account on GitHub.
2014 · github.com · its alternatives →
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Convert HEIC images to JPEG or PNG on macOS
2017 · apps.apple.com · its alternatives →
- 16
A fast, multi-threaded Redis® and Valkey alternative written in Rust: drop-in compatible, with full-text and vector search built in - kividbio/kividb
3d ago · github.com · its alternatives →
- 17
Picture Kit▲10I’ve been working on a side project for a while and wanted to share it with the HN community to get feedback. The idea started simple: I wanted to do batch image processing entirely in the browser without uploading anything to a server. Most existing tools were either cloud-based (privacy concerns, slow for large batches) or desktop apps that were hard to automate and combine into workflows. A big source of inspiration was macOS Automator. I really liked how you could chain small actions into repeatable workflows, and I wanted something similar for image processing on the web. At first it…
Jan 2026 · picturekit.app · its alternatives →
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Batch image processing in browser. No signup.
Jul 2026 · imagepipeline.art · its alternatives →
- 19
Hi HN, I've been building this tool for the past couple of weeks to solve a problem that seems universal across development teams: sharing environment variables securely. You know the drill - someone needs the staging database URL, so it gets shared over chat. Production API keys end up in plaintext files. Or you set up some complex secret management system that becomes a single point of failure during critical deployments. At Zerodha, we're a stock broker with strict regulatory requirements. Our infrastructure needs to be auditable, and our data must stay with us for instant recovery. But…
2025 · kiln.sh · its alternatives →
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Batch resize, compress and convert images privately
Aug 2026 · batchkit-app-2026.batchtool.workers.dev · its alternatives →
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Imageflow▲11Open-source software to scale, edit and optimize images
2016 · kickstarter.com · its alternatives →
- 23
Hi HN, I built a native macOS app for AI image generation, originally for my own creative work. I enjoy working with models like Z-Image and FLUX, but many existing tools feel closer to research interfaces than creative tools. They expose a lot of power, but often interrupt creative flow. This project is built around a creator-first workflow: - Easy to get started, with no configuration beyond downloading or importing models - Progressive controls: advanced options are available, but not required - A built-in prompt library to save, reuse, and evolve prompts over time - Lightweight prompt…
Jan 2026 · themindstudio.cc · its alternatives →
- 24
Convert, Watermark, Self Attest Images. All in one place
Nov 2025 · imagemagic.in · 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 →