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Work · alternatives · 2026

1S

24 alternatives to 100.st – Dev utilities I built for format conversions and encoding

I built this because I needed one place for all my dev tasks. Handles JSON/YAML/XML conversions, UUID gen, case transforms, and encoding tools. Built with Next.js/Chakra UI frontend, NGINX on a vps, Cloudflare for dns and cache. All client-side processing for privacy. What tools should I add next? Andrei

100.st is a web-based utility collection for developers handling format conversions and common coding tasks. It supports JSON, YAML, and XML conversions, UUID generation, case transformations, and encoding tools. Built… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Generate UI with simple text prompts: copy, paste, ship

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  2. 2

    All-in-one toolbox for your most used tools

    2024 · 10015.io · its alternatives →

  3. 3
    ManyPI▲354

    10x your revenue by finding your ideal customers

    Dec 2025 · manypi.com · its alternatives →

  4. 4

    Hey HN, I find myself reaching for tools like it-tools.tech or other random sites every now and then during development or debugging. So, I built a toolkit with a sane and simple CLI interface for most of those tools. For the curious and lazy, at the moment, ut has tools for, - Encoding: base64 (encode, decode), url (encode, decode) - Hashing: md5, sha1, sha224, sha256, sha384, sha512 - Data Generation: uuid (v1, v3, v4, v5), token, lorem, random - Text Processing: case (lower, upper, camel, title, constant, header, sentence, snake), pretty-print, diff - Development Tools: calc, json…

    2025 · github.com · its alternatives →

  5. 5

    Format, repair, convert, and visualize JSON, XML, YAML, CSV, and TOML. Free developer platform with advanced visualizers and AI-powered syntax repair.

    2020 · jsonmaster.com · its alternatives →

  6. 6

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    2025 · onlinewebdevtools.com · its alternatives →

  7. 7

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    2025 · its alternatives →

  8. 8

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    2025 · nicheutils.com · its alternatives →

  9. 9

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    Jul 2026 · dev101.io · its alternatives →

  10. 10

    30+ dev tools in one place fast, free, and 100% client-side.

    May 2026 · rawtools.site · its alternatives →

  11. 11

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    Feb 2026 · opendevutils.com · its alternatives →

  12. 12

    Free online developer tools — 60+ utilities.

    May 2026 · github.com · its alternatives →

  13. 13

    Hundreds of tools, one destination

    2025 · its alternatives →

  14. 14

    Hi HN! I was recently on a sabbatical and wanted to checkout the advancements in the frontend space. I would love to show you all https://utiliti.dev! I often find myself resorting to online web-based utilities, especially for things like note sharing, or viewing JSON as a tree when my IDE isn't open. Having used a few tools in the past, I was never sure what those tools were doing so I ended up building something myself and open sourced it. Highlight: I really enjoyed building private notes, an easy and quick way to share something private over email that gets destroyed on read…

    2023 · utiliti.dev · its alternatives →

  15. 15

    Essential free tools for developers, all in one place

    2024 · its alternatives →

  16. 16

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    Jul 2026 · usedevdash.dev · its alternatives →

  17. 17

    Fast, free all-in-one utilities for text, code, SEO and more

    Nov 2025 · stackonlinetools.com · its alternatives →

  18. 18

    100 privacy-first browser tools that work locally

    Jun 2026 · toolpool.dev · its alternatives →

  19. 19

    utils.foo a fully client side, ads-free developer utils app. Today, it has a timestamp converter, base64/url encoder/decoder, json & diff utils, quick pivoting data. A lot of these exist, but often buried with ads or unclear data usage. I wanted to build something for myself that is ads-free and easy to use. My goal is get to top 20 commonly used tools, make them feature-rich and then reduce the page size. Will appreciate feature/tools requests and feedback at https://github.com/midplane/forum.utils.foo/issues.

    2024 · utils.foo · its alternatives →

  20. 20

    Modern Developer Toolkit

    Jan 2026 · jsonplayground.online · its alternatives →

  21. 21

    All-in-one developer & network toolkit

    2025 · 99tools.in · its alternatives →

  22. 22

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    2025 · toolkit-hub.gotodev.ma · its alternatives →

  23. 23

    60+ free browser tools — no signup, no uploads, 100% private

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    Pure Frontend Toolkit纯前端工具集

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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 →