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Comparison · Collab
HedgeDoc vs Readwise
A side-by-side editorial comparison of HedgeDoc and Readwise — release velocity, themes, recent moves, and the top alternatives to consider.
HedgeDoc vs Readwise: at a glance
What is HedgeDoc?
A collaborative markdown editor on a security-driven maintenance cadence.
HedgeDoc's 1.x line ships every one to two months and is dominated by security response. Recent releases carry seven advisories between them — HTML injection via an email localpart, YAML frontmatter denial of service, CSRF in the Gist export, a rate-limit bypass through CF-Connecting-IP, a permission-value validation gap, missing upload security headers, and script execution in uploaded SVGs. Around those sit configuration knobs for the external-link warning, webp uploads, and rate limits.
What is Readwise?
Readwise splits its bundle into Reader-only and Highlights-only plans and renames its first app.
Readwise posts a weekly changelog. The October 23 release changes packaging: the original app is now Readwise Highlights, and users can subscribe to Reader or Highlights alone instead of the full bundle, switching plans themselves. The same week adds 38 Lifelike beta voices in 14 languages, rebuilds Daily Review audio on those voices, and makes YouTube transcripts twice as fast without filler words.
HedgeDoc vs Readwise: editorial side-by-side
HedgeDoc
2.5COLLAB
A collaborative markdown editor on a security-driven maintenance cadence.
◆ Current state
HedgeDoc's 1.x line ships every one to two months and is dominated by security response. Recent releases carry seven advisories between them — HTML injection via an email localpart, YAML frontmatter denial of service, CSRF in the Gist export, a rate-limit bypass through CF-Connecting-IP, a permission-value validation gap, missing upload security headers, and script execution in uploaded SVGs. Around those sit configuration knobs for the external-link warning, webp uploads, and rate limits.
◆ Where it's heading
Two threads run in parallel. The perimeter work reduces attack surface and maintenance burden at once: old API endpoints and unused config are deleted, Node 18 support is dropped now that its security window has closed, and features added in one release tend to gain an off switch in the next. The second thread is realtime correctness — concurrent-editing data loss, connections dropped mid-handshake, operations discarded during revision gap recovery — which is the only work aimed at the core editing experience rather than its edges.
◆ Prediction
Expect the 1.x line to continue as security and correctness maintenance, with more legacy endpoints and configuration removed rather than new editing features added.
Readwise
6.3COLLAB
Readwise splits its bundle into Reader-only and Highlights-only plans and renames its first app.
◆ Current state
Readwise posts a weekly changelog. The October 23 release changes packaging: the original app is now Readwise Highlights, and users can subscribe to Reader or Highlights alone instead of the full bundle, switching plans themselves. The same week adds 38 Lifelike beta voices in 14 languages, rebuilds Daily Review audio on those voices, and makes YouTube transcripts twice as fast without filler words.
◆ Where it's heading
Reader has been the main product thread for months (TTS, Ghostreader on GPT-6 Luna, video transcripts), and the plan split lets it be sold on its own. Lifelike voices are spreading from Reader's Listen into Highlights' Daily Review, so the two apps now share an audio layer while being priced separately.
◆ Prediction
Expect follow-up fixes around plan switching and more Lifelike voice tuning; Lifelike leaving beta is the most supported next feature step.
Alternatives to HedgeDoc and Readwise
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either HedgeDoc or Readwise.
SiYuan
SiYuan 3.8.9 reaches RC, adding AI-agent extraction of images embedded in PDFs.
KACE
KACE extends its PHP2SHELL fix to the SDA deployment appliance, six days after disclosure.
Mattermost
Mattermost v12 puts user-scoped permissions, private models and audit trails on every agent action.
AFFiNE
AFFiNE's canaries stay on upkeep: a Swift Collections bump follows CVE and migration fixes.
Teable
Teable's Structured Query v2 now reports across multi-hop relations, with a strict mode against SQL.
See all HedgeDoc alternatives → · See all Readwise alternatives →
Recent activity from HedgeDoc and Readwise
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 6d agoReadwiseReadwise unbundles: Reader-only and Highlights-only plans ⚡
- 13d agoReadwiseReader fixes: Listen start point, mobile rendering, 3D Secure
- 20d agoReadwiseLifelike voices get steadier pacing as TTS stalls are fixed
- 27d agoReadwiseLifelike TTS voices, reading themes and a faster Reader launch
- 1mo agoReadwiseGhostreader defaults to GPT-6 Luna; homepage redesign
- 1mo agoReadwiseRedesigned review emails and Reader API highlight creation
- 2mo agoHedgeDocHedgeDoc 1.12.0
- 3mo agoHedgeDocHedgeDoc 1.11.1
- 4mo agoHedgeDocHedgeDoc 1.11.0
- 6mo agoHedgeDocHedgeDoc 1.10.8
- 8mo agoHedgeDocHedgeDoc 1.10.7
- 8mo agoHedgeDocHedgeDoc 1.10.6
Frequently asked questions
What is the difference between HedgeDoc and Readwise?
They serve adjacent needs but don't currently overlap on shipped themes. Readwise is currently shipping more aggressively (velocity 6.3 vs 2.5), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is HedgeDoc better than Readwise?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Readwise is currently shipping more aggressively (velocity 6.3 vs 2.5), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to HedgeDoc?
Top HedgeDoc alternatives in Collab are ranked by recent ship velocity. Browse the "HedgeDoc alternatives" section above for the current picks, or visit /alternatives/hedgedoc for the full list with editorial commentary on each.
What are the best alternatives to Readwise?
Top Readwise alternatives in Collab are ranked by recent ship velocity. Browse the "Readwise alternatives" section above for the current picks, or visit /alternatives/readwise for the full list with editorial commentary on each.