AI Indie MakerAI Indie Maker · Chinese indie developer directory

Free online tools you can use without installing anything (2026)

Hand-picked 19 products · updated 2026-11-04

Sometimes you just need to crop an image, convert a file or check a device — and you don't want to install another app for it. These 19 tools all run in a browser tab. Many of them process your files locally, so the file never leaves your machine.

Product descriptions are machine-translated from the developers' original Chinese (the original text stays untouched on every product's Chinese page). Every listing links to our English product page, which in turn links to the product's official site.

Image & Document Processing 5

  1. Image to ASCII Image to ASCII character drawing tool, free without registration, the image is processed locally in the browser; you can adjust the character style, details and color, copy text or Markdown, export TXT, PNG, SVG and other formats for README, chat character drawing and retro covers By Lucas-CX
  2. PicPermit ID photo and passport/visa production tool (free), supports 500+ official specifications around the world, ICAO biometric line assistance and face alignment, cutouts, background changes, photos are completely processed locally, and can export 300 DPI electronic photos and 4×6-inch typesetting and printing plates By DustarCode · Zhejiang
  3. PdfCompare Free login-free online PDF comparison and text conversion tool, running purely locally based on browser WebAssembly, millisecond-level word-level red and green highlight differences and drawing overlay comparison, 100% zero upload of document data to the cloud, zero risk of leakage By haihiaen
  4. MailMergeOnline PDF batch generation tool with built-in ready-made templates for certificates, contracts, payslips, invoices, etc. You can import Excel/CSV and map fields to batch generate personalized PDFs, and the data will not leave the browser - no installation required By Linky-AIinlink
  5. Create PDF from Sheet Convert Excel to PDF, you can preview pagination and merge multiple workbooks in the browser, the file does not need to be uploaded to the database, no registration is required, and there is no watermark By jankarong

Audio & Video Processing 5

  1. Find Key & BPM The browser locally estimates the key, Camelot and BPM of MP3/WAV without uploading the audio and no need to register. By Muke
  2. Egg cutting Jiandan Windows screenshot import auxiliary tool, send clipboard pictures to Clipboard Professional Edition through Ctrl+V, reducing the need to save pictures and search files; for the first time, you need an email verification code to log in, and the pictures will not be uploaded when processed locally. By SKYCHENV
  3. VoiceCloner Use your own voice to convert text into speech; free quota per day, can be used without registration By LongAotian
  4. SubtitleGenerator AI subtitle generation and proofreading tool, automatically marks uncertain words and displays the number of remaining checks, and completes generation, proofreading, full-track translation, subtitle style and video export in the same browser workflow; no registration is required and videos up to 10 minutes long can be processed for free By woshiliyana
  5. Video to Text Video to text supports four export formats: CSV, TXT, SRT, and VTT. It can be attached with timestamps and speaker tags. It supports 99 languages. In addition to uploading files, it also supports video links from social media platforms such as YouTube, TikTok, and Instagram. By Dkphhh

Format Conversion & Sharing 3

  1. Formatho A collection of 134 free developer tools (JSON/YAML/CSV formatting, JWT decoding, SQL formatting, hash generation, etc.), all processed locally in the browser, no uploading, no registration, open source (MIT) By Nitin Gurbani
  2. HTMLShare Publish static HTML as a shareable preview link to quickly share and review prototype pages without the need for Git, production deployment, or account registration By zeroXu1
  3. CrossTool Cross-border seller local privacy toolbox, 52 tools 100% run in the browser (video compression, image conversion to PDF, cost calculation, etc.), zero upload and zero server, for Amazon/TikTok Shop/Shopify sellers, free and no registration required By 863683348

Productivity & Saving Money 4

  1. Trim Subscribe to Minesweeper Subscription bill analysis tool, import Alipay/WeChat bills, automatically identify and renew, calculate annual subscription expenses and amount of savings; bills are not uploaded, identification is all done locally in the browser, free and no registration required By leilosss
  2. Interval Timers Interval timer (free) that can set work time, rest time, prep countdown and cycle rounds, and provides sound prompts, suitable for HIIT, Tabata, fitness training and other scenarios that require work/rest cycle timing By pandaupup · Guangzhou
  3. Hot to touch A Chinese hotspot aggregation website that organizes public lists such as Weibo, Zhihu, Toutiao, GitHub Trending, technology and finance into one place, and provides cross-platform hotspots, rising popularity, historical hot searches and RSS By zjzno1
  4. Fishing Assistant Embed the video or novel you want to watch into the work software Moyu app, which can quickly adjust the position, size, top position and transparency of the browser and desktop windows, and automatically identify the browser's picture-in-picture window and dock it to the specified position on the screen. By ylv01 · Shenzhen

Device Diagnostics 2

  1. Dead Pixel Test Screen dead pixel test tool (free) helps check dead pixels, bright spots, dark spots and display abnormalities on monitors, laptops and other screens through full-screen solid color testing By pandaupup · Guangzhou
  2. SubnetDesk Cross-platform remote desktop application, automatically discovers devices through mDNS within a LAN or VPN and connects directly using IP or host name, without requiring public network device ID, signaling or relay; supports Windows, macOS, Linux and Android, AGPL-3.0 open source By zibo-chen

Frequently asked questions

What can I do without installing software?

Image and document processing, audio and video conversion, file format conversion, QR codes and sharing, device and network diagnostics, and a long tail of small utilities. All of them open in a browser tab.

Do these online tools upload my files?

Not always — it depends on the tool. We mark and favour tools that state they process files locally in the browser. If you're handling contracts, ID photos or anything sensitive, prefer those, and verify by opening your browser's Network panel while processing a file.

Do I need to create an account?

Most don't require it. Several are explicitly 'no signup, no login' — you open the page and start working.

Are browser-based tools slower than desktop apps?

For small files they're usually instant. For big files the limit is your machine's memory rather than the network, since nothing is uploaded. Very large batch jobs are still better done with a desktop tool.

Is this list free?

Yes — the directory itself is free, with no membership and no paid ranking. Individual tools may have their own pricing, which is their business model, not ours.

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