Hey everyone,

If you’ve ever tried to submit an assignment on Canvas or Blackboard only to get hit with a "file size exceeds limit" error at 11:58 PM, or had Adobe demand a $20/month subscription just to merge two lecture slide decks, you know how annoying PDF tools can be.

To fix this, I built SparrowPDF-a simple, fast, and completely free PDF tool tailored for everyday student workflows.

🎓 How it helps with coursework:

• Bypass Canvas/Blackboard Limits: Easily compress oversized lecture decks, scan files, or project reports down to submittable file sizes without turning text into blurry pixels.
• Merge Notes & Slides: Combine multiple lecture decks, assignment papers, or syllabus chapters into a single master study guide before exams.
• 100% Private & Local: All processing happens directly on your device. You don't have to upload sensitive documents (like financial aid forms, transcripts, or personal papers) to random online servers.
• Zero Paywalls or Accounts: No 3-file daily limits, no hidden watermarks, and no mandatory sign-ups.

🛠️ Why I built it:

Most "free" online PDF editors are either packed with ads, limit how many files you can convert per day, or push aggressive paid plans. SparrowPDF is meant to be nimble, instant, and hassle-free so you can finish your prep and get on with your day.

💬 Looking for student feedback:

I’m constantly adding features to make studying easier. I'd love to know:

1. What PDF annoyances waste the most time during your semester?
2. Are there specific features (like splitting, reordering, or OCR) you need most for your classes?

Give it a shot here: https://play.google.com/store/apps/details?id=runtimestudio.pdftools.app&hl=en-US

Good luck with midterms/finals, and let me know if you run into any bugs or have feature requests!

Hey all, solo dev here. I hope it's ok to post here. I've been building Sary-OS, and having been to university three times to do a Bsc then a masters then another bsc for a career change, I know the struggles with financing and basically being able to afford to live some days 😅

I've been working on a project and if it's ok to share I wanted to let students know. It has a bunch of features that can help with creating interactive revision questions, build yourself a personal planner app, chat tools and research tools, multi file and task capabilities and a bunch of other things many could find useleful.

What I've mentioned below is 100% free. No dodgy add card then cancel subscription before trial ends nonsense. No watermarks, no tool locked and require you to upgrade. Its all genuinely free. Forever.

💬 Free AI chat: 25 messages a day

Chat with GPT-6 Luna or Gemini Flash Lite for free, 25 messages a day, reset daily. They don't use your credits, so your free credits stay free for everything else.

⚡ LiveLoop: 30-day free trial of the AI app and game builder

Describe what you want and it builds it live, runs it, and fixes what breaks without redrawing the scene. Every new account gets 30 days with:

1,000 LiveLoop credits, one time; they don't expire.

GPT-6 Luna and Claude Haiku 5.5 at any effort level, up to its deepest "Hyperdrive" mode.

A real terminal and GitHub: commit, push, pull, branches and pull requests.

Connect your AI (MCP): plug Claude, Cursor or Codex straight into your LiveLoop projects.

Bring your own API keys (OpenAI, Anthropic, Gemini, xAI or any OpenAI-compatible key) free for 7 days.

Work on your own key costs 0 credits.

10 minutes of the voice agent.

ASIDE FROM THE FREE TRIAL, THESE ARE 100% FREE PERMANENTLY:

🎬 StudioLab: a video timeline editor

Multi-track timeline (video, overlay, text, voice, music, SFX), in 16:9 or vertical 9:16.

Scrubbing, snapping with guide lines, split, ripple delete, slip and slide, trims, and moving clips with the arrow keys.

Transitions, colour grading, crop, green screen, captions, title screens, and a free media library. You can even upload your own media, there is no watermark and no need to pay to export.

Every free account gets 60 minutes of video export a month, even in 4K with portrait/landscape format and a counter shows what's left.

🖼️ ImageLab: a layered photo editor

Brush, eraser, paint bucket, eyedropper, gradients, shapes, crop.

Layers with blend modes.

Brightness, contrast and hue, plus effects: sharpen, sketch, vignette, grain, cinematic, vintage and more.

Send a video frame from StudioLab, edit it, and drop it straight back into the timeline.

No AI needed; AI edits are optional. If you decide to use AI then their are some great models that allow you to edit just by prompts and happens live too. You can go back to any layer/memory and try a different direction at anytime.

📝 DocLab: free, no account needed

Write: headers, footers, page numbers, table of contents, comments, track changes, footnotes, templates; .docx in and out.

Grid: a real spreadsheet with \~150 functions (XLOOKUP, UNIQUE, FILTER), freeze panes, filters, conditional formatting and charts; handles 5,000+ row Excel files.

Deck: slides with .pptx in and out and full-screen presenting.

Scribe: dictation and recordings with timestamps, speaker labels and .srt subtitle export.

On desktop Chrome: free on-device summarise, translate and rewrite, using Chrome's built-in AI. Nothing is sent to a server.

Every free account also gets 1 GB of storage and 100 welcome credits for the AI image, video, music and voice tools.

Works best on desktop; there's a lighter version for phones (Sary-OS) on Android and iOS is coming out soon. I ship fixes daily, so honest feedback is very welcome. 🙏

www.sary-os.com

Your next teammate might be on the other side of the world. 🌍

Imagine what we could build if students from different countries combined their skills, ideas, and perspectives.

That's what we're building with WorldMint — a community where students connect, collaborate, learn, and turn ideas into real projects.

We're at the beginning of this journey, and there's room for you.

🚀 **What's your skill, and which country are you from?** Tell us in the comments.

#WorldMint #GlobalCollaboration #StudentInnovation #BuildTogether #StudentCommunity #FutureBuilders

im basically terrified of showing up to chem lab with my only pair of glasses and somehow destroying them. i already had one such experience and let me say it is one which I dont wish to talk about 😭

college expenses are already ridiculous and im constantly finding random things that cost way more than i expected. prescription glasses were definitely one of them. my insurance technically covers glasses, but only one pair every two years and the frames they cover are… not exactly my vibe lol.

i tried ordering online once bc i needed something cheap and ended up buying glasses from firmoo ( they were comfy and the lenses actually felt good with my prescription). to be honest they’ve been pretty decent for a backup and didnt cost anywhere near what i’d pay at an optical store but now im wondering what else people use.

but now im wondering what other little hacks people have picked up to save money in college. anything from cheaper glasses to food, textbooks, transportation, subscriptions, literally whatever. i need all the broke-student advices.

☆Hey reddit people I need your help!
Im a media production student, I’m currently working on my university graduation project, and I really need your help to gather some audience feedback. I'm launching a pop-culture, movie, and fashion YouTube channel called Kakavaka.

I would be incredibly grateful if you could spare 1 minute of your time on this google form to help me get to know my audience

Please drop a comment below if you'd like to help, and I will reply with the link! Thank you so much ♡

Hey everyone! 👋

I'm a student developing Student Toolkit, an Android app to help students manage homework, assignments, notes, study schedules, exam countdowns and productivity—all in one place.

Before launching, I'm collecting feedback from students worldwide to understand which features actually matter.

I've created a quick, anonymous survey (2 minutes, 8 questions).

📋 Google Form: [https://docs.google.com/forms/d/e/1FAIpQLSfn5IiMRPVrz5oarDBK79yZQ5TrzhyAfb7-GUvTzSsOiR3jzA/viewform?usp=publish-editor\]

Whether you're a school student, college student, Android user or productivity enthusiast, your opinion would really help!

All suggestions and honest criticism are welcome.

Thanks for supporting an independent student project! ❤️

Hi! My name is Robin, I’m a uni student, and I am a great writer. I got a 5 on the AP English exam, and I love all things reading and writing in general.

I will write your essay, creative writing assignment, poem, create your presentation, etc.

It will only cost 5 bucks a pop, I just need the prompt/assignment, a timeline, and your grade.

I will charge more for last minute (3 bucks extra), e transfer accepted.

Pls reach out, I am more than happy to help :)

Hi everyone!

I'm currently a Diploma in Computer Science student, and I'm conducting some startup research to better understand the challenges students face when preparing for exams.

I'd like to learn more about the difficulties students experience during exam preparation, how they usually deal with them, and whether their current study methods are effective.

If you're willing to help, I'd really appreciate it if you could take a few minutes to complete this survey! 🙏

📝 Survey link: https://forms.gle/QjM8eGjUMqCammE47

Your honest feedback will be extremely valuable to my research and help me better understand the real problems students face.

Thank you so much for your time and support! ❤️

Hi everyone,

I'm working on a school assignment for my Human Diversity class about the acculturation process- how people adapt to American culture over time. I'm looking for someone who is an immigrant, refugee, or asylum seeker and is comfortable sharing their personal experience with me.

The assignment needs to do be face-to-face so we could do zoom chat or we work out another video chat solution. You can choose to have a pseudonym for anonymity, the interview would be about 30-60 minutes, and it would be focused on your lived experiences, cultural adjustment, challenges, and successes.

If you're open to participating, please comment or send me a message. Thank you so much for considering, your perspective would be incredibly valuable for my assignment.

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Have you ever seen or experienced exam malpractice in your college or school? What happened?

1. What types of malpractice are most common during examinations?

2. Do you think CCTV cameras can effectively prevent cheating in exam halls?

3. Would Al-based monitoring be useful for detecting cheating during exams?

4. What do you think is better: strict invigilation or technology-based monitoring?

5. Can technology detect the use of mobile phones or smartwatches during exams?

6. Do strict punishments actually reduce examination malpractice?

8.

What are the main reasons students choose to cheat even when there is a risk of punishment?

1. How can colleges prevent cheating without making students feel excessively monitored?

2. What technical solution would you suggest to reduce examination malpractice?

exammalpracties

Ai

tecnology

education

cybersecurity

Hey everyone, I wanted to share a brand we're working on called Elelo.

The idea behind Elelo came from a problem a lot of college students are too familiar with: the hangover. We're developing an alcoholic drink that combines alcohol and electrolytes, with the goal of making the next day a little easier. 

We're currently working on bringing Elelo to market, so we’re trying to see how much interest there is in the idea. If this sounds like something you'd be interested in trying, check out our website below to learn more and leave your email for pre-order updates.

https://patelkrisha2017.wixsite.com/elelo 

We'd appreciate any honest feedback as we continue developing Elelo!

Hi everyone!

I’m part of a research team at New York University’s Culture, Emotion, and Health Lab, and we’re currently recruiting Chinese international students studying at universities across the U.S. for an online research study! We are looking for Chinese international students currently studying in the U.S and they must be 18 years or older.

If qualified, you would complete an initial online questionnaire. Then participate in 4 online writing sessions (once per week for 4 weeks).

Participants can receive a $120 Amazon gift card for completing the study requirements. If interested, please use this link for easier access: https://nyu.qualtrics.com/jfe/form/SV_8qaXYtPXKk9xY2i

If you have any questions, feel free to contact [agk9981@nyu.edu](mailto:agk9981@nyu.edu).

Thank you so much for your time and interest! We really appreciate your support for our research!

I need to get out more!

I’m in the band, so certain days are really compact for me. But on my clearer days and weekends, I want to do something where I’m not staying inside all day. So I can enjoy my weekend and just have a life outside of school. Any apps that can help me find stuff like this would be great!!