nowfound

Life & fun · alternatives · 2026

24 alternatives to Inject hidden prompt in LLMs using Base64 encoding

Inject hidden prompt in LLMs using Base64 encoding.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Inject hidden prompt in LLMs using Base64 encoding launched in 2024; newer entries below may have overtaken it.

  1. 1

    https://github.com/elijah-potter/ofc

    2025 · elijahpotter.dev · its alternatives →

  2. 2

    I made a free tool that stuns LLMs with invisible Unicode characters. *Use cases:* Anti-plagiarism, text obfuscation against LLM scrapers, or just for fun! Even just one word's worth of “gibberified” text is enough to block most LLMs from responding coherently.

    Nov 2025 · gibberifier.com · its alternatives →

  3. 3

    This is my take on the common "use llms to generate shell commands" utility. Emphasis is placed on good CLI UX, simplicity, and flexibility. `llm2sh` supports multiple LLM providers and lets LLMs generate multi-command sequences to handle complex tasks. There is also limited support for commands requiring `sudo` and other basic input. I recommend using Groq llama3-70b for day-to-day use. The ultra-low latency is a game-changer - its near-instant responses helps `llm2sh` integrate seamlessly into day-to-day tasks without breaking you out of the 'zone'. For more advanced tasks, swapping to…

    2024 · github.com · its alternatives →

  4. 4

    Good morning HN! For a while now I have been toying with this idea and now finally have a working prototype. This project allows you to encode secret messages into ordinary looking text by using arithmetic coding with a probability model derived from an LLM. By encrypting the message and then decompressing the encrypted message using the arithmetic coder, you get output which looks just like randomly sampled output from the LLM. Except, it actually encodes your secret messages in the specific choices of tokens. By using authenticated encryption, only a user who knows the key can know that a…

    2025 · github.com · its alternatives →

  5. 5FI

    I found that I am using ChatGPT more and more to get the FFmpeg command I need, but the process can be a bit tedious: copy-pasting commands, dealing with input file names and locations, making sure the prompt contains enough info about the input files. This site attempts to solve that. You just describe what you want to do, pick the input files and an LLM (currently DeepSeek) generates the FFmpeg command. You can then run it directly in your browser or use the command elsewhere.

    2025 · vidmix.app · its alternatives →

  6. 6

    Connect LLM chats directly to your file system

    2025 · its alternatives →

  7. 7

    I built a single-file Python script that lets you run LLM prompts from the command line with templating, structured outputs, and the ability to chain prompts together. When I discovered Google's Dotprompt format (frontmatter + Handlebars templates), I realized it was perfect for something I'd been wanting: treating prompts as first-class programs you can pipe together Unix-style. Google uses Dotprompt in Firebase Genkit and I wanted something simpler - just run a .prompt file directly on the command line. Here's what it looks like: --- model: anthropic/claude-sonnet-4-20250514 output:…

    Nov 2025 · github.com · its alternatives →

  8. 8

    A nonsense way to hide encrypted text messages inside jpegs - WolframHempel/speaking-jpg

    2017 · github.com · its alternatives →

  9. 9

    Ultra-fast, low latency LLM prompt injection/jailbreak detection ⛓️ - arekusandr/last_layer

    2024 · github.com · its alternatives →

  10. 10

    New ways of breaking app-integrated LLMs . Contribute to greshake/llm-security development by creating an account on GitHub.

    2023 · github.com · its alternatives →

  11. 11

    A CLI tool to convert your codebase into a single LLM prompt

    2025 · github.com · its alternatives →

  12. 12

    Tiny prompt-injection firewall for LLM chat apps. 14 MB.

    May 2026 · github.com · its alternatives →

  13. 13

    Just stop jailbreaks & prompt hacks with one API call.

    2025 · expireddomains.com · its alternatives →

  14. 14CL

    I tried to port LLMLingua-2's official Python implementation into TypeScript. For best performance, open the URL with a WebGPU enabled web browser. Learn More: https://github.com/atjsh/llmlingua-2-js

    2025 · atjsh.github.io · its alternatives →

  15. 15AC

    Hey HN! I'm working on OpenPipe, an open source prompt workshop. I wanted to share a feature we recently released: prompt translations. Prompt translations allow you to quickly convert a prompt between GPT 3.5, Llama 2, and Claude 1/2 compatible formats. The common case would be if you’re using GPT 3.5 in production and are interested in evaluating a Claude or Llama 2 model for your use case. Here's a screen recording to show how it works in our UI: https://twitter.com/OpenPipeLab/status/1687875354311180288 We’ve found a lot of our users are interested in…

    2023 · its alternatives →

  16. 16

    Hide secret messages in plain text using invisible Unicode.

    2025 · chinmay29hub-stegmoji.vercel.app · its alternatives →

  17. 17

    Little tool that I made to understand how (un)reasonable my prompts are.

    Jan 2026 · github.com · its alternatives →

  18. 18EL

    Instead of giving LLM tools SSH access or installing them on a server, the following command: $ promptctl ssh user@server makes a set of locally defined prompts "magically" appear within the remote shell as executable command line programs. For example, I have locally defined prompts for `llm-analyze-config` and `askai`. Then on (any) remote host I can: $ promptctl ssh user@host # Now on remote host $ llm-analyze-config /etc/nginx.conf $ cat docker-compose.yml | askai "add a load balancer" the prompts behind `llm-analyze-config` and `askai` execute on my local computer (even though…

    Mar 2026 · docs.promptcmd.sh · its alternatives →

  19. 19

    Instant Base64 encode/decode, JSON format & data processing!

    2025 · base64haven.com · its alternatives →

  20. 20

    Hey HN! We just launched PromptL: a templating language built to simplify writing complex prompts for LLMs like GPT-4 and Claude. Why PromptL? Creating dynamic prompts for LLMs can get tricky, even with standardized APIs that use lists of messages and settings. While these formats are consistent, building complex interactions with custom logic or branching paths can quickly become repetitive and hard to manage as prompts grow. PromptL steps in to make this simple. It allows you to define and manage LLM conversations in a readable, single-file format, with support for control flow and…

    2024 · promptl.ai · its alternatives →

  21. 21

    Ultra-fast, low latency LLM prompt injection/jailbreak detection ⛓️ - arekusandr/last_layer

    2024 · github.com · its alternatives →

  22. 22

    Free real-time, low latency lossless LLM prompt compression

    2025 · promptfold.web.app · its alternatives →

  23. 23

    The void is now A/B tested. One user prompt: “Be silence.” One toggle: embodiment system prompt. Present → 0 bytes. Absent → speech. GPT-5.2 + Claude Opus 4.6. Sealed run. Prompt hash. Provider message IDs. https://t.co/YpVSWPKof2 https://t.co/SSs7yBRYRb @OpenAI @AnthropicAI @GoogleDeepMind

    Jun 2026 · twitter.com · its alternatives →

  24. 24

    Optimize your prompt

    Apr 2026 · guardian-prompt-pal.lovable.app · its alternatives →

Also compare

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 →